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100 results found for "zero-polynomial" in Class 10.

कौन सा बहुपद (x=0) को शून्य बनाता है लेकिन शून्य बहुपद नहीं है?

Which polynomial makes (x=0) a zero but is not the zero polynomial?

Explanation opens after your attempt
Correct Answer

B. \(4x^3-7x\)

Step 1

Concept

Substituting (x=0) in \(4x^3-7x\) gives (0), and it is not the zero polynomial. For (x=0), the constant term must be (0).

Step 2

Why this answer is correct

The correct answer is B. \(4x^3-7x\). Substituting (x=0) in \(4x^3-7x\) gives (0), and it is not the zero polynomial. For (x=0), the constant term must be (0).

Step 3

Exam Tip

\(4x^3-7x\) में (x=0) रखने पर (0) मिलता है और यह शून्य बहुपद नहीं है। (x=0) के लिए अचर पद (0) होना चाहिए।

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यदि (p(-3)=0), तो बहुपद का कौन-सा शून्यक है?

If (p(-3)=0), which value is a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. (-3)

Step 1

Concept

The (x)-value for which (p(x)=0) is a zero. Hence (-3) is a zero of the polynomial.

Step 2

Why this answer is correct

The correct answer is A. (-3). The (x)-value for which (p(x)=0) is a zero. Hence (-3) is a zero of the polynomial.

Step 3

Exam Tip

जिस (x)-मान पर (p(x)=0) हो वही शून्यक होता है। इसलिए (-3) बहुपद का शून्यक है।

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किसी बहुपद के ग्राफ पर शून्यक पहचानने के लिए कौन-सा मान शून्य होना चाहिए?

Which value must be zero to identify a zero on the graph of a polynomial?

Explanation opens after your attempt
Correct Answer

A. बहुपद का मानValue of the polynomial

Step 1

Concept

At a zero, the polynomial value is (0). While reading a graph, look for points where (y=0).

Step 2

Why this answer is correct

The correct answer is A. बहुपद का मान / Value of the polynomial. At a zero, the polynomial value is (0). While reading a graph, look for points where (y=0).

Step 3

Exam Tip

शून्यक पर बहुपद का मान (0) होता है। ग्राफ पढ़ते समय (y=0) वाले बिंदु देखें।

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शून्य बहुपद (p(x)=0) के ग्राफ के बारे में कौन सा कथन सही है?

Which statement is correct about the graph of the zero polynomial (p(x)=0)?

Explanation opens after your attempt
Correct Answer

A. पूरा ग्राफ (x)-अक्ष हैThe whole graph is the (x)-axis

Step 1

Concept

(p(x)=0) gives (y=0) for every (x). Therefore the whole (x)-axis is the graph.

Step 2

Why this answer is correct

The correct answer is A. पूरा ग्राफ (x)-अक्ष है / The whole graph is the (x)-axis. (p(x)=0) gives (y=0) for every (x). Therefore the whole (x)-axis is the graph.

Step 3

Exam Tip

(p(x)=0) हर (x) के लिए (y=0) देता है। इसलिए पूरा (x)-अक्ष ग्राफ है।

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यदि (p(x)=0) शून्य बहुपद है तो उसके शून्यकों के बारे में कौन सा कथन सही है?

If (p(x)=0) is the zero polynomial, which statement about its zeroes is correct?

Explanation opens after your attempt
Correct Answer

B. हर वास्तविक (x) शून्यक हैEvery real (x) is a zero

Step 1

Concept

The zero polynomial gives (0) for every (x). Tip: treat it differently from a usual constant polynomial.

Step 2

Why this answer is correct

The correct answer is B. हर वास्तविक (x) शून्यक है / Every real (x) is a zero. The zero polynomial gives (0) for every (x). Tip: treat it differently from a usual constant polynomial.

Step 3

Exam Tip

शून्य बहुपद हर (x) पर (0) देता है। टिप: इसे सामान्य स्थिर बहुपद से अलग समझें।

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यदि (p(x)=0) शून्य बहुपद है तो उसके आलेख पर कौन सा कथन सही है?

If (p(x)=0) is the zero polynomial, which statement about its graph is correct?

Explanation opens after your attempt
Correct Answer

A. आलेख (x)-अक्ष ही हैThe graph is the (x)-axis itself

Step 1

Concept

For the zero polynomial, (y=0) for every (x). Tip: this is a special case.

Step 2

Why this answer is correct

The correct answer is A. आलेख (x)-अक्ष ही है / The graph is the (x)-axis itself. For the zero polynomial, (y=0) for every (x). Tip: this is a special case.

Step 3

Exam Tip

शून्य बहुपद में हर (x) पर (y=0) होता है। टिप: यह विशेष स्थिति है।

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शून्य बहुपद (p(x)=0) का हर (x)-मान क्या कहलाता है?

For the zero polynomial (p(x)=0) what is every (x)-value called?

Explanation opens after your attempt
Correct Answer

A. शून्यकZero

Step 1

Concept

For the zero polynomial the value is (0) for every (x). Tip: this is a special case.

Step 2

Why this answer is correct

The correct answer is A. शून्यक / Zero. For the zero polynomial the value is (0) for every (x). Tip: this is a special case.

Step 3

Exam Tip

शून्य बहुपद में हर (x) पर मान (0) होता है। टिप: यह विशेष स्थिति है।

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किसी स्थिर अशून्य बहुपद (p(x)=-3) का ग्राफ (x)-अक्ष को क्यों नहीं काटता?

Why does the graph of the non-zero constant polynomial (p(x)=-3) not cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. क्योंकि (y) हमेशा (-3) रहता हैBecause (y) always remains (-3)

Step 1

Concept

For (p(x)=-3), the (y)-value is never (0). So the graph does not cut the (x)-axis and has no zero.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि (y) हमेशा (-3) रहता है / Because (y) always remains (-3). For (p(x)=-3), the (y)-value is never (0). So the graph does not cut the (x)-axis and has no zero.

Step 3

Exam Tip

(p(x)=-3) का (y)-मान कभी (0) नहीं होता। इसलिए ग्राफ (x)-अक्ष को नहीं काटता और कोई शून्यक नहीं है।

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यदि रेखा (y=2x-6) (x)-अक्ष को काटती है, तो संबंधित रैखिक बहुपद का शून्यक क्या है?

If the line (y=2x-6) cuts the (x)-axis, what is the zero of the related linear polynomial?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

On the (x)-axis, (y=0), so (2x-6=0) gives (x=3). This is the graphical zero.

Step 2

Why this answer is correct

The correct answer is A. (3). On the (x)-axis, (y=0), so (2x-6=0) gives (x=3). This is the graphical zero.

Step 3

Exam Tip

(x)-अक्ष पर (y=0), इसलिए (2x-6=0) से (x=3) मिलता है। यही ग्राफीय शून्यक है।

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किस स्थिति में (x=2) बहुपद (p(x)) का शून्यक कहलाएगा?

In which situation will (x=2) be called a zero of polynomial (p(x))?

Explanation opens after your attempt
Correct Answer

A. जब (p(2)=0) होWhen (p(2)=0)

Step 1

Concept

A value is called a zero only when the polynomial value at that point is (0). So for (x=2), (p(2)=0) is required.

Step 2

Why this answer is correct

The correct answer is A. जब (p(2)=0) हो / When (p(2)=0). A value is called a zero only when the polynomial value at that point is (0). So for (x=2), (p(2)=0) is required.

Step 3

Exam Tip

किसी मान को शून्यक तभी कहते हैं जब उस पर बहुपद का मान (0) हो। इसलिए (x=2) के लिए (p(2)=0) होना चाहिए।

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किसी स्थिर अशून्य बहुपद जैसे (p(x)=5) के ग्राफ से शून्यकों के बारे में क्या पता चलता है?

What does the graph of a non-zero constant polynomial like (p(x)=5) show about its zeroes?

Explanation opens after your attempt
Correct Answer

A. कोई शून्यक नहींNo zero

Step 1

Concept

The graph of (p(x)=5) is a line parallel to the (x)-axis and does not cut it. Hence it has no zero.

Step 2

Why this answer is correct

The correct answer is A. कोई शून्यक नहीं / No zero. The graph of (p(x)=5) is a line parallel to the (x)-axis and does not cut it. Hence it has no zero.

Step 3

Exam Tip

(p(x)=5) का ग्राफ (x)-अक्ष के समानांतर रेखा है जो (x)-अक्ष को नहीं काटती। इसलिए इसका कोई शून्यक नहीं है।

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यदि ग्राफ (x)-अक्ष को ((0,0)) पर काटता है, तो बहुपद का एक शून्यक क्या होगा?

If a graph cuts the (x)-axis at ((0,0)), what is one zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

The (x)-coordinate of ((0,0)) is (0). Therefore (0) is one zero of the polynomial.

Step 2

Why this answer is correct

The correct answer is A. (0). The (x)-coordinate of ((0,0)) is (0). Therefore (0) is one zero of the polynomial.

Step 3

Exam Tip

बिंदु ((0,0)) का (x)-निर्देशांक (0) है। इसलिए (0) बहुपद का एक शून्यक होगा।

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यदि (p(x)=x-2-13x+k) का एक शून्यक (6) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होंगे?

If (p(x)=x-2-13x+k) has one zero (6), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (7), कटान ((6,0)), ((7,0))Other (7), intersections ((6,0)), ((7,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (13), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (7), कटान ((6,0)), ((7,0)) / Other (7), intersections ((6,0)), ((7,0)). In the quadratic, the sum of zeroes is (13), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (13) है, इसलिए दूसरा शून्यक (7) है। टिप: शून्यक को ((x,0)) में बदलें।

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यदि परवलय का सममिति अक्ष (x=5) है और एक शून्यक (-1) है, तो दूसरा शून्यक क्या होगा?

If the axis of symmetry of a parabola is (x=5) and one zero is (-1), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (11)

Step 1

Concept

The average of the two zeroes is (5), so the other zero is (11). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is A. (11). The average of the two zeroes is (5), so the other zero is (11). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (5) है इसलिए दूसरा शून्यक (11) होगा। टिप: सममिति अक्ष शून्यकों के मध्य से गुजरता है।

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यदि (p(x)=x-2-11x+k) का एक शून्यक (4) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होंगे?

If (p(x)=x-2-11x+k) has one zero (4), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (7), कटान ((4,0)), ((7,0))Other (7), intersections ((4,0)), ((7,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (11), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (7), कटान ((4,0)), ((7,0)) / Other (7), intersections ((4,0)), ((7,0)). In the quadratic, the sum of zeroes is (11), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (11) है, इसलिए दूसरा शून्यक (7) है। टिप: शून्यक को ((x,0)) में बदलें।

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यदि परवलय का सममिति अक्ष (x=-2) है और एक शून्यक (5) है, तो दूसरा शून्यक क्या होगा?

If the axis of symmetry of a parabola is (x=-2) and one zero is (5), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (-9)

Step 1

Concept

The average of the two zeroes is (-2), so the other zero is (-9). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is A. (-9). The average of the two zeroes is (-2), so the other zero is (-9). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (-2) है, इसलिए दूसरा शून्यक (-9) होगा। टिप: सममिति अक्ष को शून्यकों के मध्य से जोड़ें।

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यदि (p(x)=x-2-9x+k) का एक शून्यक (4) है तो दूसरा शून्यक और कटान बिंदु क्या होंगे?

If (p(x)=x-2-9x+k) has one zero (4), what will be the other zero and intersection points?

Explanation opens after your attempt
Correct Answer

A. दूसरा (5), कटान ((4,0)), ((5,0))Other (5), intersections ((4,0)), ((5,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (9), so the other zero is (5). Tip: quickly convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (5), कटान ((4,0)), ((5,0)) / Other (5), intersections ((4,0)), ((5,0)). In the quadratic, the sum of zeroes is (9), so the other zero is (5). Tip: quickly convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (9) है इसलिए दूसरा शून्यक (5) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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किसी परवलय का एक शून्यक (11) है और सममिति अक्ष (x=3) है। दूसरा शून्यक क्या होगा?

A parabola has one zero (11) and axis of symmetry (x=3). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (-5)

Step 1

Concept

The average of the two zeroes is (3), so the other zero is (-5). Tip: set \(\frac{a+b}{2}\) equal to the axis of symmetry.

Step 2

Why this answer is correct

The correct answer is A. (-5). The average of the two zeroes is (3), so the other zero is (-5). Tip: set \(\frac{a+b}{2}\) equal to the axis of symmetry.

Step 3

Exam Tip

दो शून्यकों का औसत (3) है इसलिए दूसरा शून्यक (-5) होगा। टिप: \(\frac{a+b}{2}\) को सममिति अक्ष के बराबर रखें।

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किसी परवलय का सममिति अक्ष (x=4) है और एक शून्यक (-2) है। दूसरा शून्यक क्या होगा?

The axis of symmetry of a parabola is (x=4) and one zero is (-2). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (10)

Step 1

Concept

The average of the two zeroes is (4), so the other zero is (10). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is A. (10). The average of the two zeroes is (4), so the other zero is (10). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 3

Exam Tip

दोनों शून्यकों का औसत (4) है इसलिए दूसरा शून्यक (10) होगा। टिप: सममिति अक्ष को शून्यकों के मध्य मान से जोड़ें।

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यदि (p(x)=x-2-7x+k) का एक शून्यक (3) है, तो दूसरा शून्यक और कटान बिंदु क्या होंगे?

If (p(x)=x-2-7x+k) has one zero (3), what will be the other zero and intersection points?

Explanation opens after your attempt
Correct Answer

A. दूसरा (4), कटान ((3,0)), ((4,0))Other (4), intersections ((3,0)), ((4,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (7), so the other zero is (4). Tip: quickly convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (4), कटान ((3,0)), ((4,0)) / Other (4), intersections ((3,0)), ((4,0)). In the quadratic, the sum of zeroes is (7), so the other zero is (4). Tip: quickly convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (7) है, इसलिए दूसरा शून्यक (4) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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किसी परवलय का एक शून्यक (9) है और सममिति अक्ष (x=2) है। दूसरा शून्यक क्या होगा?

A parabola has one zero (9) and axis of symmetry (x=2). What is the other zero?

Explanation opens after your attempt
Correct Answer

A. (-5)

Step 1

Concept

The average of the two zeroes is (2), so the other zero is (-5). Tip: set \( \frac{a+b}{2} \) equal to the axis of symmetry.

Step 2

Why this answer is correct

The correct answer is A. (-5). The average of the two zeroes is (2), so the other zero is (-5). Tip: set \( \frac{a+b}{2} \) equal to the axis of symmetry.

Step 3

Exam Tip

दो शून्यकों का औसत (2) है, इसलिए दूसरा शून्यक (-5) होगा। टिप: \( \frac{a+b}{2} \) को सममिति अक्ष के बराबर रखें।

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किसी परवलय का सममिति अक्ष (x=1) है और एक शून्यक (-5) है। दूसरा शून्यक क्या होगा?

The axis of symmetry of a parabola is (x=1) and one zero is (-5). What will be the other zero?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

The average of the two zeroes is (1), so the other zero is (7). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is C. (7). The average of the two zeroes is (1), so the other zero is (7). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (1) होगा इसलिए दूसरा शून्यक (7) है। टिप: सममिति अक्ष शून्यकों के मध्य से गुजरता है।

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यदि (p(x)=x-2-5x+k) का एक शून्यक (2) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होगा?

If (p(x)=x-2-5x+k) has one zero (2), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (3), कटान ((2,0)), ((3,0))Other (3), intersections ((2,0)), ((3,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (5), so the other zero is (3). Tip: immediately convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (3), कटान ((2,0)), ((3,0)) / Other (3), intersections ((2,0)), ((3,0)). In the quadratic, the sum of zeroes is (5), so the other zero is (3). Tip: immediately convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (5) है, इसलिए दूसरा शून्यक (3) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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किसी परवलय का एक शून्यक (4) है और सममिति अक्ष (x=-1) है। दूसरा शून्यक क्या होगा?

A parabola has one zero (4) and axis of symmetry (x=-1). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (-6)

Step 1

Concept

The average of the two zeroes is (-1), so the other zero is (-6). Tip: set the average equal to the axis of symmetry.

Step 2

Why this answer is correct

The correct answer is A. (-6). The average of the two zeroes is (-1), so the other zero is (-6). Tip: set the average equal to the axis of symmetry.

Step 3

Exam Tip

दो शून्यकों का औसत (-1) है, इसलिए दूसरा शून्यक (-6) होगा। टिप: औसत को सममिति अक्ष के बराबर रखें।

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कौन सा बहुपद (x=0) को शून्य बनाता है?

Which polynomial makes (x=0) a zero?

Explanation opens after your attempt
Correct Answer

B. \(3x^3-2x\)

Step 1

Concept

Substituting (x=0) in \(3x^3-2x\) gives (0). To make (x=0) a zero, the constant term must be (0).

Step 2

Why this answer is correct

The correct answer is B. \(3x^3-2x\). Substituting (x=0) in \(3x^3-2x\) gives (0). To make (x=0) a zero, the constant term must be (0).

Step 3

Exam Tip

(x=0) रखने पर \(3x^3-2x=0\) मिलता है। (x=0) को शून्य बनाने के लिए अचर पद (0) होना चाहिए।

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कौन सा बहुपद (x=0) को शून्य नहीं बनाता?

Which polynomial does not make (x=0) a zero?

Explanation opens after your attempt
Correct Answer

D. \(x^2+1\)

Step 1

Concept

On substituting (x=0), \(x^2+1=1\), so (0) is not its zero. The constant term is decisive at (x=0).

Step 2

Why this answer is correct

The correct answer is D. \(x^2+1\). On substituting (x=0), \(x^2+1=1\), so (0) is not its zero. The constant term is decisive at (x=0).

Step 3

Exam Tip

(x=0) रखने पर \(x^2+1=1\), इसलिए (0) इसका शून्य नहीं है। (x=0) पर अचर पद निर्णायक होता है।

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यदि \(5+\sqrt{21}\) किसी परिमेय गुणांक वाले द्विघात बहुपद का शून्यक है, तो उस बहुपद का एक संभव रूप कौन सा है?

If \(5+\sqrt{21}\) is a zero of a quadratic polynomial with rational coefficients, which is one possible form of that polynomial?

Explanation opens after your attempt
Correct Answer

A. \(x^2-10x+4\)

Step 1

Concept

The other zero will be \(5-\sqrt{21}\). Sum (10) and product (25-21=4) give the polynomial \(x^2-10x+4\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2-10x+4\). The other zero will be \(5-\sqrt{21}\). Sum (10) and product (25-21=4) give the polynomial \(x^2-10x+4\).

Step 3

Exam Tip

दूसरा शून्यक \(5-\sqrt{21}\) होगा। योग (10) और गुणनफल (25-21=4) से बहुपद \(x^2-10x+4\) बनता है।

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किस स्थिति में (x=3) बहुपद (p(x)) का शून्यक कहलाएगा?

In which situation will (x=3) be called a zero of polynomial (p(x))?

Explanation opens after your attempt
Correct Answer

A. जब (p(3)=0)When (p(3)=0)

Step 1

Concept

A zero is the (x)-value at which the polynomial value is zero. In exams check (p(a)=0).

Step 2

Why this answer is correct

The correct answer is A. जब (p(3)=0) / When (p(3)=0). A zero is the (x)-value at which the polynomial value is zero. In exams check (p(a)=0).

Step 3

Exam Tip

शून्यक वही (x)-मान है जिस पर बहुपद का मान शून्य हो। परीक्षा में (p(a)=0) जांचें।

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किस स्थिति में (0) बहुपद का वास्तविक शून्यक होगा?

In which situation will (0) be a real zero of a polynomial?

Explanation opens after your attempt
Correct Answer

B. ग्राफ ((0,0)) से गुजरता हैThe graph passes through ((0,0))

Step 1

Concept

(0) is a zero when (p(0)=0). Tip: passing through the origin shows zero as a zero.

Step 2

Why this answer is correct

The correct answer is B. ग्राफ ((0,0)) से गुजरता है / The graph passes through ((0,0)). (0) is a zero when (p(0)=0). Tip: passing through the origin shows zero as a zero.

Step 3

Exam Tip

(0) शून्यक तब है जब (p(0)=0) हो। टिप: मूल बिंदु से गुजरना (0) शून्यक बताता है।

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किसी रैखिक बहुपद का आलेख (y=4x+12) है। इसका शून्यक क्या है?

The graph of a linear polynomial is (y=4x+12). What is its zero?

Explanation opens after your attempt
Correct Answer

A. (-3)

Step 1

Concept

Solving (4x+12=0) gives (x=-3). Tip: set (y=0) to find the zero.

Step 2

Why this answer is correct

The correct answer is A. (-3). Solving (4x+12=0) gives (x=-3). Tip: set (y=0) to find the zero.

Step 3

Exam Tip

(4x+12=0) से (x=-3) मिलता है। टिप: शून्यक के लिए (y=0) रखें।

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यदि (x=7) किसी बहुपद का शून्यक है, तो ग्राफ पर कौन सा बिंदु अवश्य होगा?

If (x=7) is a zero of a polynomial, which point must lie on the graph?

Explanation opens after your attempt
Correct Answer

C. ((7,0))

Step 1

Concept

A zero (7) means (p(7)=0). Tip: place the zero as the first coordinate.

Step 2

Why this answer is correct

The correct answer is C. ((7,0)). A zero (7) means (p(7)=0). Tip: place the zero as the first coordinate.

Step 3

Exam Tip

शून्यक (7) होने का अर्थ (p(7)=0) है। टिप: शून्यक को पहले निर्देशांक में रखें।

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किस स्थिति में रैखिक बहुपद का कोई वास्तविक शून्यक नहीं होगा?

In which situation will a linear polynomial have no real zero?

Explanation opens after your attempt
Correct Answer

B. जब उसका ग्राफ (x)-अक्ष के समांतर और ऊपर होWhen its graph is parallel to and above the (x)-axis

Step 1

Concept

A line parallel to and above the (x)-axis does not meet the (x)-axis. Tip: such a graph behaves like a non-zero constant polynomial.

Step 2

Why this answer is correct

The correct answer is B. जब उसका ग्राफ (x)-अक्ष के समांतर और ऊपर हो / When its graph is parallel to and above the (x)-axis. A line parallel to and above the (x)-axis does not meet the (x)-axis. Tip: such a graph behaves like a non-zero constant polynomial.

Step 3

Exam Tip

(x)-अक्ष के समांतर ऊपर रेखा (x)-अक्ष से नहीं मिलती। टिप: ऐसा ग्राफ अशून्य स्थिर बहुपद जैसा होता है।

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किस स्थिति में (-6) बहुपद का शून्यक होगा?

In which situation will (-6) be a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. आलेख ((-6,0)) पर (x)-अक्ष को काटेThe graph cuts the (x)-axis at ((-6,0))

Step 1

Concept

For (-6) to be a zero (p(-6)=0). Tip: do not miss the negative sign.

Step 2

Why this answer is correct

The correct answer is A. आलेख ((-6,0)) पर (x)-अक्ष को काटे / The graph cuts the (x)-axis at ((-6,0)). For (-6) to be a zero (p(-6)=0). Tip: do not miss the negative sign.

Step 3

Exam Tip

(-6) शून्यक होने का अर्थ (p(-6)=0) है। टिप: ऋण चिह्न को न छोड़ें।

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किस स्थिति में बहुपद का (3) शून्यक होगा?

In which situation will (3) be a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. आलेख ((3,0)) से गुजरेThe graph passes through ((3,0))

Step 1

Concept

If (3) is a zero then (p(3)=0). Tip: look for the point ((3,0)).

Step 2

Why this answer is correct

The correct answer is A. आलेख ((3,0)) से गुजरे / The graph passes through ((3,0)). If (3) is a zero then (p(3)=0). Tip: look for the point ((3,0)).

Step 3

Exam Tip

(3) शून्यक होने पर (p(3)=0) होता है। टिप: बिंदु ((3,0)) खोजें।

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कौन सा बिंदु किसी बहुपद के शून्यक को सीधे दिखाता है?

Which point directly shows a zero of a polynomial?

Explanation opens after your attempt
Correct Answer

A. ((9,0))

Step 1

Concept

A point showing a zero has (y)-coordinate (0). Tip: choose points lying on the (x)-axis.

Step 2

Why this answer is correct

The correct answer is A. ((9,0)). A point showing a zero has (y)-coordinate (0). Tip: choose points lying on the (x)-axis.

Step 3

Exam Tip

शून्यक वाले बिंदु का (y)-निर्देशांक (0) होता है। टिप: (x)-अक्ष पर पड़े बिंदु चुनें।

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यदि आलेख (x)-अक्ष को (-2) पर काटता है तो बहुपद का शून्यक क्या है?

If the graph cuts the (x)-axis at (-2) then what is the zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. (-2)

Step 1

Concept

The (x)-coordinate of the (x)-axis intersection is the zero. Tip: read the sign carefully.

Step 2

Why this answer is correct

The correct answer is A. (-2). The (x)-coordinate of the (x)-axis intersection is the zero. Tip: read the sign carefully.

Step 3

Exam Tip

(x)-अक्ष कटान का (x)-निर्देशांक ही शून्यक होता है। टिप: चिह्न को ध्यान से पढ़ें।

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यदि बहुपद का आलेख मूल बिंदु ((0,0)) से गुजरता है तो कौन सा शून्यक अवश्य होगा?

If the graph of a polynomial passes through the origin ((0,0)) then which zero is certain?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

At the origin (x=0) and (p(x)=0). Tip: a graph through the origin has (0) as a zero.

Step 2

Why this answer is correct

The correct answer is A. (0). At the origin (x=0) and (p(x)=0). Tip: a graph through the origin has (0) as a zero.

Step 3

Exam Tip

मूल बिंदु पर (x=0) और (p(x)=0) होता है। टिप: origin पर जाने वाला आलेख (0) को शून्यक बनाता है।

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यदि किसी बहुपद का कोई वास्तविक शून्यक नहीं है, तो उसका ग्राफ (x)-अक्ष के साथ क्या करेगा?

If a polynomial has no real zero, what will its graph do with the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. न तो काटेगा न छुएगाIt will neither cut nor touch it

Step 1

Concept

A real zero appears when the graph meets the (x)-axis. With no real zero, the graph will not meet the (x)-axis.

Step 2

Why this answer is correct

The correct answer is A. न तो काटेगा न छुएगा / It will neither cut nor touch it. A real zero appears when the graph meets the (x)-axis. With no real zero, the graph will not meet the (x)-axis.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष से मिलने पर दिखता है। कोई वास्तविक शून्यक न होने पर ग्राफ (x)-अक्ष से नहीं मिलेगा।

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ग्राफ में बिंदु ((-8,0)) दिखने पर बहुपद का कौन-सा मान शून्य होगा?

If the point ((-8,0)) appears on the graph, which value of the polynomial input gives zero?

Explanation opens after your attempt
Correct Answer

A. (x=-8)

Step 1

Concept

The point ((-8,0)) means (y=0) at (x=-8). So (x=-8) makes the polynomial zero.

Step 2

Why this answer is correct

The correct answer is A. (x=-8). The point ((-8,0)) means (y=0) at (x=-8). So (x=-8) makes the polynomial zero.

Step 3

Exam Tip

((-8,0)) का अर्थ है (x=-8) पर (y=0)। इसलिए (x=-8) बहुपद को शून्य बनाता है।

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यदि (p(0)=4), तो क्या (0) बहुपद का शून्यक है?

If (p(0)=4), is (0) a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. नहींNo

Step 1

Concept

For (0) to be a zero, (p(0)=0) must be true. Here (p(0)=4), so (0) is not a zero.

Step 2

Why this answer is correct

The correct answer is A. नहीं / No. For (0) to be a zero, (p(0)=0) must be true. Here (p(0)=4), so (0) is not a zero.

Step 3

Exam Tip

शून्यक होने के लिए (p(0)=0) होना चाहिए। यहाँ (p(0)=4), इसलिए (0) शून्यक नहीं है।

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एक बहुपद का ग्राफ (x)-अक्ष को केवल ((-2,0)) पर छूता है। अलग वास्तविक शून्यक कौन-सा है?

A polynomial graph only touches the (x)-axis at ((-2,0)). What is the distinct real zero?

Explanation opens after your attempt
Correct Answer

A. (-2)

Step 1

Concept

A touching point also gives (p(x)=0). Therefore the distinct real zero is (-2).

Step 2

Why this answer is correct

The correct answer is A. (-2). A touching point also gives (p(x)=0). Therefore the distinct real zero is (-2).

Step 3

Exam Tip

छूने वाला बिंदु भी (p(x)=0) देता है। इसलिए अलग वास्तविक शून्यक (-2) है।

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किस स्थिति में द्विघात बहुपद का कोई वास्तविक शून्यक नहीं होगा?

In which case will a quadratic polynomial have no real zero?

Explanation opens after your attempt
Correct Answer

A. जब उसका ग्राफ (x)-अक्ष को न छुए और न काटेWhen its graph neither touches nor cuts the (x)-axis

Step 1

Concept

For real zeroes, the graph must meet the (x)-axis. If it does not meet the (x)-axis, there is no real zero.

Step 2

Why this answer is correct

The correct answer is A. जब उसका ग्राफ (x)-अक्ष को न छुए और न काटे / When its graph neither touches nor cuts the (x)-axis. For real zeroes, the graph must meet the (x)-axis. If it does not meet the (x)-axis, there is no real zero.

Step 3

Exam Tip

वास्तविक शून्यक के लिए ग्राफ का (x)-अक्ष से मिलना जरूरी है। यदि ग्राफ (x)-अक्ष से नहीं मिलता, तो कोई वास्तविक शून्यक नहीं होगा।

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यदि (p(2)=5), तो क्या (2) बहुपद का शून्यक है?

If (p(2)=5), is (2) a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. नहींNo

Step 1

Concept

For (2) to be a zero, (p(2)=0) must hold. Here (p(2)=5), so (2) is not a zero.

Step 2

Why this answer is correct

The correct answer is A. नहीं / No. For (2) to be a zero, (p(2)=0) must hold. Here (p(2)=5), so (2) is not a zero.

Step 3

Exam Tip

शून्यक होने के लिए (p(2)=0) होना चाहिए। यहाँ (p(2)=5), इसलिए (2) शून्यक नहीं है।

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यदि किसी बहुपद का ग्राफ (x)-अक्ष को (x=3) पर काटता है, तो उसका शून्यक क्या होगा?

If the graph of a polynomial cuts the (x)-axis at (x=3), what is its zero?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

The (x)-value where the graph cuts the (x)-axis is the zero. Hence the zero is (3).

Step 2

Why this answer is correct

The correct answer is A. (3). The (x)-value where the graph cuts the (x)-axis is the zero. Hence the zero is (3).

Step 3

Exam Tip

जहाँ ग्राफ (x)-अक्ष को काटता है वही (x)-मान शून्यक होता है। इसलिए यहाँ शून्यक (3) है।

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अशून्य स्थिर बहुपद (p(x)=5) के आलेख का (x)-अक्ष से संबंध क्या है?

What is the relation of the graph of the non-zero constant polynomial (p(x)=5) with the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. यह (x)-अक्ष के समांतर है और उसे नहीं काटताIt is parallel to the (x)-axis and does not cut it

Step 1

Concept

The value (p(x)=5) is never (0) so it has no zero. Tip: a non-zero constant polynomial has no zero.

Step 2

Why this answer is correct

The correct answer is A. यह (x)-अक्ष के समांतर है और उसे नहीं काटता / It is parallel to the (x)-axis and does not cut it. The value (p(x)=5) is never (0) so it has no zero. Tip: a non-zero constant polynomial has no zero.

Step 3

Exam Tip

(p(x)=5) कभी (0) नहीं होता इसलिए शून्यक नहीं है। टिप: अशून्य स्थिर बहुपद का शून्यक नहीं होता।

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यदि किसी बहुपद का ग्राफ (x)-अक्ष को चार बार काटता दिखे, तो यह किस प्रकार के बहुपद के लिए संभव हो सकता है?

If a polynomial graph appears to cut the (x)-axis four times, for which type of polynomial can this be possible?

Explanation opens after your attempt
Correct Answer

C. चतुर्थ घात बहुपदFourth degree polynomial

Step 1

Concept

A degree (4) polynomial can have at most (4) real zeroes. Tip: the number of real zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. चतुर्थ घात बहुपद / Fourth degree polynomial. A degree (4) polynomial can have at most (4) real zeroes. Tip: the number of real zeroes cannot exceed the degree.

Step 3

Exam Tip

घात (4) वाला बहुपद अधिकतम (4) वास्तविक शून्यक रख सकता है। टिप: वास्तविक शून्यकों की संख्या घात से अधिक नहीं होती।

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यदि किसी बहुपद का एक शून्यक \(\sqrt{11}\) है और गुणांक परिमेय हैं, तो कौन सा शून्यक भी होना चाहिए?

If one zero of a polynomial is \(\sqrt{11}\) and the coefficients are rational, which zero should also occur?

Explanation opens after your attempt
Correct Answer

A. -\(\sqrt{11}\)

Step 1

Concept

The conjugate of \(\sqrt{11}=0+\sqrt{11}\) is \(-\sqrt{11}\). In exams also identify the case (a=0).

Step 2

Why this answer is correct

The correct answer is A. -\(\sqrt{11}\). The conjugate of \(\sqrt{11}=0+\sqrt{11}\) is \(-\sqrt{11}\). In exams also identify the case (a=0).

Step 3

Exam Tip

\(\sqrt{11}=0+\sqrt{11}\) का संयुग्मी \(-\sqrt{11}\) है। परीक्षा में (a=0) वाला संयुग्मी भी पहचानें।

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यदि \(2+\sqrt{3}\) एक बहुपद \(x^2-4x+1\) का शून्यक है, तो दूसरा शून्यक क्या होगा?

If \(2+\sqrt{3}\) is a zero of the polynomial \(x^2-4x+1\), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. \(2-\sqrt{3}\)

Step 1

Concept

For a quadratic with rational coefficients, if \(a+\sqrt{b}\) is a zero then \(a-\sqrt{b}\) is also a zero. The conjugate-root rule is useful in exams.

Step 2

Why this answer is correct

The correct answer is A. \(2-\sqrt{3}\). For a quadratic with rational coefficients, if \(a+\sqrt{b}\) is a zero then \(a-\sqrt{b}\) is also a zero. The conjugate-root rule is useful in exams.

Step 3

Exam Tip

परिमेय गुणांकों वाले द्विघात में \(a+\sqrt{b}\) के साथ \(a-\sqrt{b}\) भी शून्यक होता है। परीक्षा में संयुग्मी मूल का नियम उपयोगी है।

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किसी परवलय का एक शून्यक (-10) है और दूसरा शून्यक पहले से (18) अधिक है। सममिति अक्ष क्या होगा?

One zero of a parabola is (-10), and the other zero is (18) more than the first. What is the axis of symmetry?

Explanation opens after your attempt
Correct Answer

A. (x=-1)

Step 1

Concept

The other zero is (8), and the average is \(\frac{-10+8}{2}=-1\). Tip: the axis of symmetry is the average of two zeroes.

Step 2

Why this answer is correct

The correct answer is A. (x=-1). The other zero is (8), and the average is \(\frac{-10+8}{2}=-1\). Tip: the axis of symmetry is the average of two zeroes.

Step 3

Exam Tip

दूसरा शून्यक (8) है और औसत \(\frac{-10+8}{2}=-1\) है। टिप: सममिति अक्ष दो शून्यकों का औसत है।

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किसी परवलय का एक शून्यक (-8) है और दूसरा शून्यक पहले से (12) अधिक है। सममिति अक्ष क्या होगा?

One zero of a parabola is (-8), and the other zero is (12) more than the first. What is the axis of symmetry?

Explanation opens after your attempt
Correct Answer

A. (x=-2)

Step 1

Concept

The other zero is (4), and the average is \(\frac{-8+4}{2}=-2\). Tip: the axis of symmetry is the average of two zeroes.

Step 2

Why this answer is correct

The correct answer is A. (x=-2). The other zero is (4), and the average is \(\frac{-8+4}{2}=-2\). Tip: the axis of symmetry is the average of two zeroes.

Step 3

Exam Tip

दूसरा शून्यक (4) है और औसत \(\frac{-8+4}{2}=-2\) है। टिप: सममिति अक्ष दो शून्यकों का औसत है।

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किसी परवलय का सममिति अक्ष (x=2) है और एक शून्यक (-3) है। दूसरा शून्यक क्या होगा?

The axis of symmetry of a parabola is (x=2) and one zero is (-3). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (7)

Step 1

Concept

The average of the two zeroes is (2), so the other zero is (7). Tip: in a parabola the axis of symmetry passes through the midpoint of the zeroes.

Step 2

Why this answer is correct

The correct answer is A. (7). The average of the two zeroes is (2), so the other zero is (7). Tip: in a parabola the axis of symmetry passes through the midpoint of the zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (2) होगा, इसलिए दूसरा शून्यक (7) है। टिप: परवलय में सममिति अक्ष शून्यकों के मध्य से गुजरता है।

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बहुपद (q(x)=x-8) का शून्यक संख्या रेखा पर किस बिंदु पर होगा?

At which point will the zero of the polynomial (q(x)=x-8) lie on the number line?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

From (x-8=0), we get (x=8). In exams, the zero of (x-a) is (a).

Step 2

Why this answer is correct

The correct answer is C. (8). From (x-8=0), we get (x=8). In exams, the zero of (x-a) is (a).

Step 3

Exam Tip

(x-8=0) से (x=8) मिलता है। परीक्षा में (x-a) का शून्यक (a) होता है।

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कौन-सा कथन सही है: (p(x)=0) जहाँ (p(x)) शून्य बहुपद है?

Which statement is correct for (p(x)=0), where (p(x)) is the zero polynomial?

Explanation opens after your attempt
Correct Answer

A. इसकी घात परिभाषित नहीं होतीIts degree is not defined

Step 1

Concept

The zero polynomial has no non-zero term, so its degree is not defined. A non-zero constant polynomial has degree (0).

Step 2

Why this answer is correct

The correct answer is A. इसकी घात परिभाषित नहीं होती / Its degree is not defined. The zero polynomial has no non-zero term, so its degree is not defined. A non-zero constant polynomial has degree (0).

Step 3

Exam Tip

शून्य बहुपद में कोई अशून्य पद नहीं होता, इसलिए उसकी घात परिभाषित नहीं होती। स्थिर अशून्य बहुपद की घात (0) होती है।

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(x=-3) किस बहुपद का शून्य है?

For which polynomial is (x=-3) a zero?

Explanation opens after your attempt
Correct Answer

A. (p(x)=x+3)

Step 1

Concept

(p(-3)=-3+3=0), so (x=-3) is its zero. To test a zero, substitute the value and check for (0).

Step 2

Why this answer is correct

The correct answer is A. (p(x)=x+3). (p(-3)=-3+3=0), so (x=-3) is its zero. To test a zero, substitute the value and check for (0).

Step 3

Exam Tip

(p(-3)=-3+3=0), इसलिए (x=-3) इसका शून्य है। शून्य जांचने के लिए मान रखकर परिणाम (0) देखें।

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निम्न में से कौन सा कथन शून्य बहुपद के लिए सही है?

Which statement is correct for the zero polynomial?

Explanation opens after your attempt
Correct Answer

C. इसकी घात परिभाषित नहीं होतीIts degree is not defined

Step 1

Concept

The degree of the zero polynomial is not defined. A non-zero constant polynomial has degree (0).

Step 2

Why this answer is correct

The correct answer is C. इसकी घात परिभाषित नहीं होती / Its degree is not defined. The degree of the zero polynomial is not defined. A non-zero constant polynomial has degree (0).

Step 3

Exam Tip

शून्य बहुपद की घात परिभाषित नहीं होती। गैर-शून्य नियत बहुपद की घात (0) होती है।

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(x=2) किस बहुपद का शून्य है?

For which polynomial is (x=2) a zero?

Explanation opens after your attempt
Correct Answer

A. (p(x)=x-2)

Step 1

Concept

(p(2)=2-2=0), so (x=2) is its zero. To test a zero, substitute and check for (0).

Step 2

Why this answer is correct

The correct answer is A. (p(x)=x-2). (p(2)=2-2=0), so (x=2) is its zero. To test a zero, substitute and check for (0).

Step 3

Exam Tip

(p(2)=2-2=0), इसलिए (x=2) इसका शून्य है। शून्य जांचने के लिए मान रखकर (0) देखें।

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शून्य बहुपद (0) की घात के बारे में सही कथन कौन सा है?

Which statement about the degree of the zero polynomial (0) is correct?

Explanation opens after your attempt
Correct Answer

C. घात परिभाषित नहीं हैDegree is not defined

Step 1

Concept

The degree of the zero polynomial is not defined. Remember it separately from a non-zero constant polynomial.

Step 2

Why this answer is correct

The correct answer is C. घात परिभाषित नहीं है / Degree is not defined. The degree of the zero polynomial is not defined. Remember it separately from a non-zero constant polynomial.

Step 3

Exam Tip

शून्य बहुपद की घात परिभाषित नहीं होती। इसे गैर-शून्य नियत बहुपद से अलग याद रखें।

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निम्न में से कौन सा शून्य बहुपद है?

Which of the following is the zero polynomial?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

(0) is the zero polynomial because every coefficient is zero. Do not apply the usual degree rule to it.

Step 2

Why this answer is correct

The correct answer is A. (0). (0) is the zero polynomial because every coefficient is zero. Do not apply the usual degree rule to it.

Step 3

Exam Tip

(0) को शून्य बहुपद कहते हैं क्योंकि इसका हर गुणांक शून्य होता है। इसकी घात पर सामान्य घात नियम न लगाएं।

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यदि \(x=3+\sqrt{8}\), तो (x) किस द्विघात बहुपद का शून्यक हो सकता है?

If \(x=3+\sqrt{8}\), which quadratic polynomial can have (x) as a zero?

Explanation opens after your attempt
Correct Answer

A. \(x^2-6x+1\)

Step 1

Concept

The companion zero is \(3-\sqrt{8}\). Sum (6) and product (9-8=1) form \(x^2-6x+1\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2-6x+1\). The companion zero is \(3-\sqrt{8}\). Sum (6) and product (9-8=1) form \(x^2-6x+1\).

Step 3

Exam Tip

साथी शून्यक \(3-\sqrt{8}\) है। योग (6) और गुणनफल (9-8=1) से बहुपद \(x^2-6x+1\) बनता है।

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यदि \(x=5+2\sqrt{6}\), तो (x) किस द्विघात बहुपद का शून्यक हो सकता है जिसके गुणांक परिमेय हैं?

If \(x=5+2\sqrt{6}\), which quadratic polynomial with rational coefficients can have (x) as a zero?

Explanation opens after your attempt
Correct Answer

A. \(x^2-10x+1\)

Step 1

Concept

The companion zero is \(5-2\sqrt{6}\), with sum (10) and product (25-24=1). In exams form the polynomial using the conjugate.

Step 2

Why this answer is correct

The correct answer is A. \(x^2-10x+1\). The companion zero is \(5-2\sqrt{6}\), with sum (10) and product (25-24=1). In exams form the polynomial using the conjugate.

Step 3

Exam Tip

साथी शून्यक \(5-2\sqrt{6}\) होगा, योग (10) और गुणनफल (25-24=1) है। परीक्षा में संयुग्मी लेकर बहुपद बनाएं।

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किस (k) के लिए \(x=\sqrt{2}\) बहुपद \(x^2+kx-2\) का शून्यक होगा?

For which (k) will \(x=\sqrt{2}\) be a zero of the polynomial \(x^2+kx-2\)?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

Substitution gives \(2+k\sqrt{2}-2=k\sqrt{2}=0\), so (k=0). In exams write (p\(\alpha\)=0) for a zero.

Step 2

Why this answer is correct

The correct answer is A. (0). Substitution gives \(2+k\sqrt{2}-2=k\sqrt{2}=0\), so (k=0). In exams write (p\(\alpha\)=0) for a zero.

Step 3

Exam Tip

रखने पर \(2+k\sqrt{2}-2=k\sqrt{2}=0\), इसलिए (k=0) है। परीक्षा में शून्यक होने पर (p\(\alpha\)=0) लिखें।

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वह एकघात बहुपद कौन सा है जिसका शून्यक \(2\sqrt{3}\) है?

Which linear polynomial has zero \(2\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

A. \(x-2\sqrt{3}\)

Step 1

Concept

A linear polynomial \(x-\alpha\) has zero \(\alpha\). Here \(\alpha=2\sqrt{3}\).

Step 2

Why this answer is correct

The correct answer is A. \(x-2\sqrt{3}\). A linear polynomial \(x-\alpha\) has zero \(\alpha\). Here \(\alpha=2\sqrt{3}\).

Step 3

Exam Tip

एकघात बहुपद \(x-\alpha\) का शून्यक \(\alpha\) होता है। यहाँ \(\alpha=2\sqrt{3}\) है।

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यदि (p(x)=x), तो ग्राफ का शून्यक क्या है?

If (p(x)=x), what is the zero of the graph?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

For the zero, (x=0) because (p(x)=x). The graph passes through the origin.

Step 2

Why this answer is correct

The correct answer is A. (0). For the zero, (x=0) because (p(x)=x). The graph passes through the origin.

Step 3

Exam Tip

शून्यक के लिए (x=0) होना चाहिए क्योंकि (p(x)=x)। ग्राफ मूल बिंदु से गुजरता है।

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रेखा (y=x+9) का शून्यक क्या होगा?

What will be the zero of the line (y=x+9)?

Explanation opens after your attempt
Correct Answer

B. (-9)

Step 1

Concept

For the zero, (x+9=0), so (x=-9). Do not make a sign error.

Step 2

Why this answer is correct

The correct answer is B. (-9). For the zero, (x+9=0), so (x=-9). Do not make a sign error.

Step 3

Exam Tip

शून्यक के लिए (x+9=0), इसलिए (x=-9)। चिह्न बदलने की गलती न करें।

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यदि रेखा (y=x+7) का ग्राफ (x)-अक्ष को काटता है, तो शून्यक क्या होगा?

If the graph of the line (y=x+7) cuts the (x)-axis, what is the zero?

Explanation opens after your attempt
Correct Answer

B. (-7)

Step 1

Concept

On the (x)-axis, (y=0), so (x+7=0) gives (x=-7). Watch the negative sign carefully.

Step 2

Why this answer is correct

The correct answer is B. (-7). On the (x)-axis, (y=0), so (x+7=0) gives (x=-7). Watch the negative sign carefully.

Step 3

Exam Tip

(x)-अक्ष पर (y=0), इसलिए (x+7=0) से (x=-7) मिलता है। ऋण चिह्न को ध्यान से देखें।

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यदि (p(x)=x+2) का ग्राफ (x)-अक्ष को काटता है, तो शून्यक कौन-सा है?

If the graph of (p(x)=x+2) cuts the (x)-axis, which is the zero?

Explanation opens after your attempt
Correct Answer

B. (-2)

Step 1

Concept

For the zero, (x+2=0), so (x=-2). The graph cuts the (x)-axis at (x=-2).

Step 2

Why this answer is correct

The correct answer is B. (-2). For the zero, (x+2=0), so (x=-2). The graph cuts the (x)-axis at (x=-2).

Step 3

Exam Tip

शून्यक के लिए (x+2=0), इसलिए (x=-2)। ग्राफ (x)-अक्ष को (x=-2) पर काटेगा।

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यदि (p(x)=x-4) का ग्राफ (x)-अक्ष को काटता है, तो शून्यक क्या होगा?

If the graph of (p(x)=x-4) cuts the (x)-axis, what is the zero?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

For the zero, (x-4=0), so (x=4). The graph also cuts the (x)-axis at (x=4).

Step 2

Why this answer is correct

The correct answer is A. (4). For the zero, (x-4=0), so (x=4). The graph also cuts the (x)-axis at (x=4).

Step 3

Exam Tip

शून्यक के लिए (x-4=0), इसलिए (x=4)। ग्राफ भी (x)-अक्ष को (x=4) पर काटेगा।

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यदि किसी परिमेय गुणांकों वाले द्विघात बहुपद का एक शून्यक \(6-2\sqrt{5}\) है, तो उस बहुपद का एक संभव रूप क्या है?

If one zero of a quadratic polynomial with rational coefficients is \(6-2\sqrt{5}\), what is one possible form of that polynomial?

Explanation opens after your attempt
Correct Answer

A. \(x^2-12x+16\)

Step 1

Concept

The other zero is \(6+2\sqrt{5}\). The sum is (12) and product is (36-20=16), so the polynomial is \(x^2-12x+16\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2-12x+16\). The other zero is \(6+2\sqrt{5}\). The sum is (12) and product is (36-20=16), so the polynomial is \(x^2-12x+16\).

Step 3

Exam Tip

दूसरा शून्यक \(6+2\sqrt{5}\) होगा। योग (12) और गुणनफल (36-20=16), इसलिए बहुपद \(x^2-12x+16\) है।

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किसी बहुपद का ग्राफ (x)-अक्ष को ((-9,0)), ((-1,0)) और ((4,0)) पर काटता है। सबसे बड़ा शून्यक कौन सा है?

A polynomial graph cuts the (x)-axis at ((-9,0)), ((-1,0)) and ((4,0)). Which is the greatest zero?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

The zeroes are (-9), (-1), (4) and the greatest is (4). Tip: the value to the right on the number line is greater.

Step 2

Why this answer is correct

The correct answer is C. (4). The zeroes are (-9), (-1), (4) and the greatest is (4). Tip: the value to the right on the number line is greater.

Step 3

Exam Tip

शून्यक (-9), (-1), (4) हैं और सबसे बड़ा (4) है। टिप: संख्या रेखा पर दाईं ओर वाला मान बड़ा होता है।

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किसी बहुपद के शून्यक (-9) और (-2) हैं। बड़ा शून्यक कौन सा है?

The zeroes of a polynomial are (-9) and (-2). Which zero is greater?

Explanation opens after your attempt
Correct Answer

B. (-2)

Step 1

Concept

On the number line, (-2) is to the right of (-9). Tip: the less negative number is greater.

Step 2

Why this answer is correct

The correct answer is B. (-2). On the number line, (-2) is to the right of (-9). Tip: the less negative number is greater.

Step 3

Exam Tip

संख्या रेखा पर (-2), (-9) के दाईं ओर है। टिप: कम ऋणात्मक संख्या बड़ी होती है।

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किस स्थिति में (x=0) बहुपद का शून्यक नहीं होगा?

In which situation will (x=0) not be a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

B. आलेख ((0,5)) से गुजरता हैThe graph passes through ((0,5))

Step 1

Concept

At ((0,5)), (p(0)=5), so (0) is not a zero. Tip: (x=0) is a zero only when (y=0) too.

Step 2

Why this answer is correct

The correct answer is B. आलेख ((0,5)) से गुजरता है / The graph passes through ((0,5)). At ((0,5)), (p(0)=5), so (0) is not a zero. Tip: (x=0) is a zero only when (y=0) too.

Step 3

Exam Tip

((0,5)) में (p(0)=5) है इसलिए (0) शून्यक नहीं है। टिप: (x=0) तभी शून्यक है जब (y=0) भी हो।

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यदि बहुपद के आलेख का (x)-अक्ष से कटान ((a,0)) है तो शून्यक क्या होगा?

If the (x)-axis intersection of a polynomial graph is ((a,0)) then what is the zero?

Explanation opens after your attempt
Correct Answer

A. (a)

Step 1

Concept

In the intersection point ((a,0)) the (x)-value (a) is the zero. Tip: take the first value of the ordered pair.

Step 2

Why this answer is correct

The correct answer is A. (a). In the intersection point ((a,0)) the (x)-value (a) is the zero. Tip: take the first value of the ordered pair.

Step 3

Exam Tip

कटान बिंदु ((a,0)) में (x)-मान (a) ही शून्यक है। टिप: क्रमित युग्म का पहला मान लें।

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किसी बहुपद के आलेख में (y)-अक्ष कटान ((0,5)) है। क्या (0) उसका शून्यक है?

The graph of a polynomial has (y)-axis intercept ((0,5)). Is (0) its zero?

Explanation opens after your attempt
Correct Answer

A. नहीं क्योंकि (p(0)=5)No because (p(0)=5)

Step 1

Concept

For (0) to be a zero (p(0)) must be (0). Tip: a (y)-axis intercept is not always a zero.

Step 2

Why this answer is correct

The correct answer is A. नहीं क्योंकि (p(0)=5) / No because (p(0)=5). For (0) to be a zero (p(0)) must be (0). Tip: a (y)-axis intercept is not always a zero.

Step 3

Exam Tip

शून्यक के लिए (p(0)) को (0) होना चाहिए। टिप: (y)-अक्ष कटान हमेशा शून्यक नहीं होता।

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किसी बहुपद (p(x)) का शून्यक आलेख में किससे दर्शाया जाता है?

What represents a zero of a polynomial (p(x)) on its graph?

Explanation opens after your attempt
Correct Answer

A. जहाँ आलेख (x)-अक्ष को काटता हैWhere the graph cuts the (x)-axis

Step 1

Concept

At a zero (p(x)=0) so the point lies on the (x)-axis. Tip: on the (x)-axis (y=0).

Step 2

Why this answer is correct

The correct answer is A. जहाँ आलेख (x)-अक्ष को काटता है / Where the graph cuts the (x)-axis. At a zero (p(x)=0) so the point lies on the (x)-axis. Tip: on the (x)-axis (y=0).

Step 3

Exam Tip

शून्यक पर (p(x)=0) होता है इसलिए बिंदु (x)-अक्ष पर होता है। टिप: (x)-अक्ष पर (y=0) होता है।

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यदि किसी बहुपद के ग्राफ का (x)-अक्ष से केवल एक साझा बिंदु ((6,0)) है, तो अलग वास्तविक शून्यक क्या होगा?

If a polynomial graph has only one common point with the (x)-axis at ((6,0)), what is the distinct real zero?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

The common point ((6,0)) has (x)-coordinate (6). So the distinct real zero is (6).

Step 2

Why this answer is correct

The correct answer is A. (6). The common point ((6,0)) has (x)-coordinate (6). So the distinct real zero is (6).

Step 3

Exam Tip

एक साझा बिंदु ((6,0)) का (x)-निर्देशांक (6) है। इसलिए अलग वास्तविक शून्यक (6) होगा।

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यदि बहुपद का ग्राफ (x)-अक्ष को ((a,0)) पर काटता है, तो शून्यक क्या होगा?

If the graph of a polynomial cuts the (x)-axis at ((a,0)), what is the zero?

Explanation opens after your attempt
Correct Answer

A. (a)

Step 1

Concept

The zero is the (x)-coordinate of the intersection point. In ((a,0)), the (x)-coordinate is (a).

Step 2

Why this answer is correct

The correct answer is A. (a). The zero is the (x)-coordinate of the intersection point. In ((a,0)), the (x)-coordinate is (a).

Step 3

Exam Tip

शून्यक कटाव बिंदु का (x)-निर्देशांक होता है। ((a,0)) में (x)-निर्देशांक (a) है।

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यदि ग्राफ (x)-अक्ष को ((-4,0)) पर काटता है, तो कौन-सा मान बहुपद को शून्य बनाता है?

If a graph cuts the (x)-axis at ((-4,0)), which value makes the polynomial zero?

Explanation opens after your attempt
Correct Answer

A. (-4)

Step 1

Concept

The (x)-coordinate of the intersection point is (-4). Therefore the polynomial value is (0) at (x=-4).

Step 2

Why this answer is correct

The correct answer is A. (-4). The (x)-coordinate of the intersection point is (-4). Therefore the polynomial value is (0) at (x=-4).

Step 3

Exam Tip

कटाव बिंदु का (x)-निर्देशांक (-4) है। इसलिए (x=-4) पर बहुपद का मान (0) होगा।

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बहुपद (p(x)) के ग्राफ में (y=p(x)) होता है। शून्यक पर (y) का मान क्या होगा?

In the graph of polynomial (p(x)), (y=p(x)). What is the value of (y) at a zero?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

At a zero, the value of the polynomial is (0). Therefore the (y)-value at that point on the graph is (0).

Step 2

Why this answer is correct

The correct answer is A. (0). At a zero, the value of the polynomial is (0). Therefore the (y)-value at that point on the graph is (0).

Step 3

Exam Tip

शून्यक पर बहुपद का मान (0) होता है। इसलिए ग्राफ पर उस बिंदु का (y)-मान (0) होगा।

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किस बिंदु से बहुपद का शून्यक सीधे मिल सकता है?

From which point can the zero of a polynomial be directly found?

Explanation opens after your attempt
Correct Answer

A. जहाँ ग्राफ (x)-अक्ष को छूता या काटता हैWhere the graph touches or cuts the (x)-axis

Step 1

Concept

For a zero, (y=0), and this happens on the (x)-axis. So look at the points where the graph meets the (x)-axis.

Step 2

Why this answer is correct

The correct answer is A. जहाँ ग्राफ (x)-अक्ष को छूता या काटता है / Where the graph touches or cuts the (x)-axis. For a zero, (y=0), and this happens on the (x)-axis. So look at the points where the graph meets the (x)-axis.

Step 3

Exam Tip

शून्यक के लिए (y=0) होना चाहिए और यह स्थिति (x)-अक्ष पर होती है। इसलिए (x)-अक्ष से मिलने वाले बिंदु देखें।

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किसी बहुपद (p(x)) का शून्यक ज्यामितीय रूप से क्या दर्शाता है?

What does a zero of a polynomial (p(x)) represent geometrically?

Explanation opens after your attempt
Correct Answer

A. वह बिंदु जहाँ ग्राफ (x)-अक्ष को काटता हैThe point where the graph cuts the (x)-axis

Step 1

Concept

A zero is the (x)-value for which (p(x)=0). On the graph, it is shown where the curve meets the (x)-axis.

Step 2

Why this answer is correct

The correct answer is A. वह बिंदु जहाँ ग्राफ (x)-अक्ष को काटता है / The point where the graph cuts the (x)-axis. A zero is the (x)-value for which (p(x)=0). On the graph, it is shown where the curve meets the (x)-axis.

Step 3

Exam Tip

किसी बहुपद का शून्यक वह (x)-मान होता है जहाँ (p(x)=0) होता है। ग्राफ में यह (x)-अक्ष पर मिलने वाला बिंदु बताता है।

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स्थिर बहुपद (p(x)=5) के ग्राफ के वास्तविक शून्यक कितने हैं?

How many real zeroes does the constant polynomial (p(x)=5) have?

Explanation opens after your attempt
Correct Answer

A. शून्यZero

Step 1

Concept

The line (y=5) is parallel to the (x)-axis and does not meet it. So it has no real zero.

Step 2

Why this answer is correct

The correct answer is A. शून्य / Zero. The line (y=5) is parallel to the (x)-axis and does not meet it. So it has no real zero.

Step 3

Exam Tip

रेखा (y=5) (x)-अक्ष के समानांतर है और उससे नहीं मिलती। इसलिए कोई वास्तविक शून्यक नहीं है।

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द्विघात बहुपद (p(x)=x-2+4) के ग्राफ के बारे में कौन सा कथन सही है?

Which statement is correct about the graph of the quadratic polynomial (p(x)=x-2+4)?

Explanation opens after your attempt
Correct Answer

A. यह (x)-अक्ष को नहीं काटताIt does not cut the (x)-axis

Step 1

Concept

\(x^2+4\) is always positive so (y=0) never occurs. Count a zero only when the graph meets the axis.

Step 2

Why this answer is correct

The correct answer is A. यह (x)-अक्ष को नहीं काटता / It does not cut the (x)-axis. \(x^2+4\) is always positive so (y=0) never occurs. Count a zero only when the graph meets the axis.

Step 3

Exam Tip

\(x^2+4\) हमेशा धनात्मक है इसलिए (y=0) नहीं होता। ग्राफ से शून्यक तभी मानें जब अक्ष से मिलन हो।

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यदि किसी रैखिक बहुपद का ग्राफ (x)-अक्ष के समानांतर है और (x)-अक्ष पर नहीं है तो उसके शून्यक कितने होंगे?

If the graph of a linear polynomial is parallel to the (x)-axis and not on the (x)-axis, how many zeroes will it have?

Explanation opens after your attempt
Correct Answer

A. शून्यZero

Step 1

Concept

Such a line never meets the (x)-axis so it has no zero. First check the intercept from the graph.

Step 2

Why this answer is correct

The correct answer is A. शून्य / Zero. Such a line never meets the (x)-axis so it has no zero. First check the intercept from the graph.

Step 3

Exam Tip

ऐसी रेखा कभी (x)-अक्ष से नहीं मिलती इसलिए कोई शून्यक नहीं होता। ग्राफ से पहले प्रतिच्छेद देखें।

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यदि किसी बहुपद का ग्राफ (x)-अक्ष को पाँच अलग बिंदुओं पर काटता है तो बहुपद की न्यूनतम घात क्या हो सकती है?

If a polynomial graph cuts the (x)-axis at five distinct points, what can be the minimum degree of the polynomial?

Explanation opens after your attempt
Correct Answer

D. (5)

Step 1

Concept

For five distinct real zeroes the degree must be at least (5). Tip: the number of zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is D. (5). For five distinct real zeroes the degree must be at least (5). Tip: the number of zeroes cannot exceed the degree.

Step 3

Exam Tip

पाँच अलग वास्तविक शून्यकों के लिए घात कम से कम (5) होनी चाहिए। टिप: शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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किस बहुपद का ग्राफ (x)-अक्ष को (x=0) पर काटेगा?

Which polynomial graph will cut the (x)-axis at (x=0)?

Explanation opens after your attempt
Correct Answer

A. जिसके लिए (p(0)=0)One for which (p(0)=0)

Step 1

Concept

To cut the (x)-axis at (x=0), the (y)-value must be (0). Hence (p(0)=0) is required.

Step 2

Why this answer is correct

The correct answer is A. जिसके लिए (p(0)=0) / One for which (p(0)=0). To cut the (x)-axis at (x=0), the (y)-value must be (0). Hence (p(0)=0) is required.

Step 3

Exam Tip

(x=0) पर (x)-अक्ष से कटने के लिए (y=0) होना चाहिए। इसलिए (p(0)=0) होना जरूरी है।

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यदि (p(x)=2x-2+mx+18) का एक शून्यक (3) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=2x-2+mx+18) is (3), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

The product is \(\frac{18}{2}=9\). Since one zero is (3), the other is (3).

Step 2

Why this answer is correct

The correct answer is A. (3). The product is \(\frac{18}{2}=9\). Since one zero is (3), the other is (3).

Step 3

Exam Tip

गुणनफल \(\frac{18}{2}=9\) है। एक शून्यक (3) है, इसलिए दूसरा (3) होगा।

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यदि (p(x)=x-2+3x-18) का एक शून्यक (3) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=x-2+3x-18) is (3), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. -(6)

Step 1

Concept

The product of zeroes is (-18). Since one zero is (3), the other is \(-18\div3=-6\).

Step 2

Why this answer is correct

The correct answer is A. -(6). The product of zeroes is (-18). Since one zero is (3), the other is \(-18\div3=-6\).

Step 3

Exam Tip

शून्यकों का गुणनफल (-18) है। एक शून्यक (3) है, इसलिए दूसरा \(-18\div3=-6\) है।

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यदि (p(x)=x-2-10x+r) का एक शून्यक (4) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=x-2-10x+r) is (4), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

The sum of zeroes is (10). Since one zero is (4), the other is (10-4=6).

Step 2

Why this answer is correct

The correct answer is A. (6). The sum of zeroes is (10). Since one zero is (4), the other is (10-4=6).

Step 3

Exam Tip

शून्यकों का योग (10) है। एक शून्यक (4) है, इसलिए दूसरा (10-4=6) है।

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यदि (p(x)=x-2-2x-2) का एक शून्यक \(1+\sqrt{3}\) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=x-2-2x-2) is \(1+\sqrt{3}\), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. \(1-\sqrt{3}\)

Step 1

Concept

The sum of zeroes is (2), so the other zero is (2-\(1+\sqrt{3}\)=1-\sqrt{3}). With rational coefficients, the conjugate also appears.

Step 2

Why this answer is correct

The correct answer is A. \(1-\sqrt{3}\). The sum of zeroes is (2), so the other zero is (2-\(1+\sqrt{3}\)=1-\sqrt{3}). With rational coefficients, the conjugate also appears.

Step 3

Exam Tip

शून्यकों का योग (2) है, इसलिए दूसरा शून्यक (2-\(1+\sqrt{3}\)=1-\sqrt{3}) है। परिमेय गुणांकों में संयुग्मी भी मिलता है।

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यदि बहुपद का शून्यक (-5) है, तो संख्या रेखा पर वह किस दिशा में होगा?

If the zero of a polynomial is (-5), in which direction will it lie on the number line?

Explanation opens after your attempt
Correct Answer

B. (0) के बाईं ओरTo the left of (0)

Step 1

Concept

The zero (-5) is negative, so it lies to the left of (0). In exams, the sign of the zero tells its direction.

Step 2

Why this answer is correct

The correct answer is B. (0) के बाईं ओर / To the left of (0). The zero (-5) is negative, so it lies to the left of (0). In exams, the sign of the zero tells its direction.

Step 3

Exam Tip

शून्यक (-5) ऋणात्मक है इसलिए वह (0) के बाईं ओर होगा। परीक्षा में शून्यक का चिह्न उसकी दिशा बताता है।

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बहुपद \(x^2-9\) का कौन सा मान शून्यक है?

Which value is a zero of the polynomial \(x^2-9\)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

\(3^2-9=0\), so (3) is a zero. Substituting options is an easy method.

Step 2

Why this answer is correct

The correct answer is B. (3). \(3^2-9=0\), so (3) is a zero. Substituting options is an easy method.

Step 3

Exam Tip

\(3^2-9=0\), इसलिए (3) शून्यक है। विकल्पों को रखकर जांचना आसान तरीका है।

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यदि परिमेय गुणांकों वाले द्विघात बहुपद का एक शून्यक \(4+\sqrt{11}\) है, तो दूसरा शून्यक कौन सा होगा?

If one zero of a quadratic polynomial with rational coefficients is \(4+\sqrt{11}\), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. \(4-\sqrt{11}\)

Step 1

Concept

With rational coefficients \(a+\sqrt{b}\) is accompanied by \(a-\sqrt{b}\). In exams identify conjugate zeroes quickly.

Step 2

Why this answer is correct

The correct answer is A. \(4-\sqrt{11}\). With rational coefficients \(a+\sqrt{b}\) is accompanied by \(a-\sqrt{b}\). In exams identify conjugate zeroes quickly.

Step 3

Exam Tip

परिमेय गुणांकों में \(a+\sqrt{b}\) के साथ \(a-\sqrt{b}\) भी शून्यक होता है। परीक्षा में संयुग्मी शून्यक तुरंत पहचानें।

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यदि (p(x)) परिमेय गुणांकों वाला द्विघात बहुपद है और उसका एक शून्यक \(2+\sqrt{7}\) है, तो दूसरा शून्यक कौन सा होगा?

If (p(x)) is a quadratic polynomial with rational coefficients and one zero is \(2+\sqrt{7}\), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. \(2-\sqrt{7}\)

Step 1

Concept

With rational coefficients, \(a+\sqrt{b}\) is accompanied by \(a-\sqrt{b}\). In exams identify conjugate zeroes quickly.

Step 2

Why this answer is correct

The correct answer is A. \(2-\sqrt{7}\). With rational coefficients, \(a+\sqrt{b}\) is accompanied by \(a-\sqrt{b}\). In exams identify conjugate zeroes quickly.

Step 3

Exam Tip

परिमेय गुणांकों में \(a+\sqrt{b}\) के साथ \(a-\sqrt{b}\) भी शून्यक आता है। परीक्षा में संयुग्मी शून्यकों को तुरंत पहचानें।

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परिमेय गुणांकों वाले किसी द्विघात बहुपद का एक शून्यक \(3-\sqrt{5}\) है। दूसरा शून्यक कौन सा होगा?

One zero of a quadratic polynomial with rational coefficients is \(3-\sqrt{5}\). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. \(3+\sqrt{5}\)

Step 1

Concept

For rational coefficients, irrational zeroes usually occur in conjugate pairs. Hence the companion zero of \(3-\sqrt{5}\) is \(3+\sqrt{5}\).

Step 2

Why this answer is correct

The correct answer is A. \(3+\sqrt{5}\). For rational coefficients, irrational zeroes usually occur in conjugate pairs. Hence the companion zero of \(3-\sqrt{5}\) is \(3+\sqrt{5}\).

Step 3

Exam Tip

परिमेय गुणांकों में अपरिमेय शून्यक सामान्यतः संयुग्मी रूप में आते हैं। इसलिए \(3-\sqrt{5}\) का साथी शून्यक \(3+\sqrt{5}\) होगा।

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यदि किसी परिमेय गुणांकों वाले द्विघात बहुपद का एक शून्यक \(\frac{3+\sqrt{5}}{2}\) है, तो दूसरा शून्यक क्या होगा?

If one zero of a quadratic polynomial with rational coefficients is \(\frac{3+\sqrt{5}}{2}\), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. \(\frac{3-\sqrt{5}}{2}\)

Step 1

Concept

With rational coefficients, the conjugate of the irrational part is also a zero. Hence \(\frac{3-\sqrt{5}}{2}\) is the other zero.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{3-\sqrt{5}}{2}\). With rational coefficients, the conjugate of the irrational part is also a zero. Hence \(\frac{3-\sqrt{5}}{2}\) is the other zero.

Step 3

Exam Tip

परिमेय गुणांकों में अपरिमेय भाग का संयुग्मी भी शून्यक होता है। इसलिए \(\frac{3-\sqrt{5}}{2}\) दूसरा शून्यक है।

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यदि \(2+\sqrt{3}\) किसी परिमेय गुणांकों वाले द्विघात बहुपद का शून्यक है, तो दूसरा शून्यक क्या होगा?

If \(2+\sqrt{3}\) is a zero of a quadratic polynomial with rational coefficients, what will the other zero be?

Explanation opens after your attempt
Correct Answer

A. \(2-\sqrt{3}\)

Step 1

Concept

With rational coefficients, the conjugate of an irrational zero is also a zero. So \(2-\sqrt{3}\) will be the other zero.

Step 2

Why this answer is correct

The correct answer is A. \(2-\sqrt{3}\). With rational coefficients, the conjugate of an irrational zero is also a zero. So \(2-\sqrt{3}\) will be the other zero.

Step 3

Exam Tip

परिमेय गुणांकों में अपरिमेय शून्यक का संयुग्मी भी शून्यक होता है। इसलिए \(2-\sqrt{3}\) दूसरा शून्यक होगा।

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यदि किसी द्विघात बहुपद के परिमेय गुणांक हैं और एक शून्यक \(3+\sqrt{5}\) है, तो दूसरा शून्यक क्या होगा?

If a quadratic polynomial has rational coefficients and one zero is \(3+\sqrt{5}\), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. \(3-\sqrt{5}\)

Step 1

Concept

For a quadratic with rational coefficients, \(a-\sqrt{b}\) accompanies \(a+\sqrt{b}\). Remember this as the conjugate-zero rule.

Step 2

Why this answer is correct

The correct answer is A. \(3-\sqrt{5}\). For a quadratic with rational coefficients, \(a-\sqrt{b}\) accompanies \(a+\sqrt{b}\). Remember this as the conjugate-zero rule.

Step 3

Exam Tip

परिमेय गुणांकों वाले द्विघात में \(a+\sqrt{b}\) के साथ \(a-\sqrt{b}\) भी शून्यक होता है। परीक्षा में इसे संयुग्मी शून्यक नियम की तरह याद रखें।

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यदि किसी ग्राफ में (x)-अक्ष से प्रतिच्छेद (\(-\sqrt{3},0\)) है तो शून्यक क्या है?

If a graph has (x)-axis intersection (\(-\sqrt{3},0\)), what is the zero?

Explanation opens after your attempt
Correct Answer

A. \(-\sqrt{3}\)

Step 1

Concept

A zero is the (x)-coordinate of the intercept. An irrational number can also be a zero.

Step 2

Why this answer is correct

The correct answer is A. \(-\sqrt{3}\). A zero is the (x)-coordinate of the intercept. An irrational number can also be a zero.

Step 3

Exam Tip

शून्यक प्रतिच्छेद का (x)-निर्देशांक होता है। अपरिमेय संख्या भी शून्यक हो सकती है।

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यदि ग्राफ (x)-अक्ष को (2.5) पर काटता है तो सही शून्यक कौन सा है?

If a graph cuts the (x)-axis at (2.5), which is the correct zero?

Explanation opens after your attempt
Correct Answer

A. (2.5)

Step 1

Concept

A zero is a number not a point. The point is ((2.5,0)) but the zero is (2.5).

Step 2

Why this answer is correct

The correct answer is A. (2.5). A zero is a number not a point. The point is ((2.5,0)) but the zero is (2.5).

Step 3

Exam Tip

शून्यक संख्या होता है बिंदु नहीं। बिंदु ((2.5,0)) है लेकिन शून्यक (2.5) है।

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यदि किसी ग्राफ के लिए (p(-3)<0), (p(1)=0), और (p(4)>0) है तो निश्चित शून्यक कौन सा है?

If for a graph (p(-3)<0), (p(1)=0), and (p(4)>0), which zero is certain?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

Only (p(1)=0) directly gives a zero. Positive or negative values are not zeroes.

Step 2

Why this answer is correct

The correct answer is A. (1). Only (p(1)=0) directly gives a zero. Positive or negative values are not zeroes.

Step 3

Exam Tip

केवल (p(1)=0) सीधे शून्यक बताता है। धनात्मक या ऋणात्मक मान शून्यक नहीं होते।

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