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100 results found for "repeated zero" in Class 10.

यदि \(\sqrt{3}\) एक बहुपद \(x^2+kx+3\) का दोहरा शून्यक है, तो (k) क्या होगा?

If \(\sqrt{3}\) is a repeated zero of \(x^2+kx+3\), what is (k)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Both zeroes are \(\sqrt{3}\), so the sum is \(2\sqrt{3}\). In \(x^2+kx+3\), the sum is (-k), hence \(k=-2\sqrt{3}\).

Step 2

Why this answer is correct

The correct answer is A. \(-2\sqrt{3}\). Both zeroes are \(\sqrt{3}\), so the sum is \(2\sqrt{3}\). In \(x^2+kx+3\), the sum is (-k), hence \(k=-2\sqrt{3}\).

Step 3

Exam Tip

दोनों शून्यक \(\sqrt{3}\) हैं, इसलिए योग \(2\sqrt{3}\) है। \(x^2+kx+3\) में योग (-k) है, अतः \(k=-2\sqrt{3}\)।

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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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दृश्य बनावट में बिंदु रेखा और छोटे आकार क्यों दोहराए जाते हैं?

Why are dots lines and small shapes repeated in visual texture?

Explanation opens after your attempt
Correct Answer

B. सतह का भ्रम बनाने के लिएTo create illusion of surface

Step 1

Concept

Repeated marks create surface feeling. Exam tip: understand texture effect through marks.

Step 2

Why this answer is correct

The correct answer is B. सतह का भ्रम बनाने के लिए / To create illusion of surface. Repeated marks create surface feeling. Exam tip: understand texture effect through marks.

Step 3

Exam Tip

दोहराए चिह्न सतह की अनुभूति बनाते हैं। परीक्षा में marks से texture effect समझें।

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दोहराई हुई रेखाओं से कपड़े में कौन सा प्रभाव बन सकता है?

What effect can repeated lines create in cloth?

Explanation opens after your attempt
Correct Answer

C. पैटर्न और लयPattern and rhythm

Step 1

Concept

Repeated lines create pattern and rhythm in cloth. Exam tip: connect textile design with repetition.

Step 2

Why this answer is correct

The correct answer is C. पैटर्न और लय / Pattern and rhythm. Repeated lines create pattern and rhythm in cloth. Exam tip: connect textile design with repetition.

Step 3

Exam Tip

दोहराई रेखाएं कपड़े में पैटर्न और लय देती हैं। परीक्षा में वस्त्र डिजाइन को पुनरावृत्ति से जोड़ें।

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\(36x^2-60x+25=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(36x^2-60x+25=0\)?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{5}{6}\)

Step 1

Concept

((6x-5)2=0), so (6x-5=0) and \(x=\frac{5}{6}\). In exams, write the repeated root as a correct fraction.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{5}{6}\). ((6x-5)2=0), so (6x-5=0) and \(x=\frac{5}{6}\). In exams, write the repeated root as a correct fraction.

Step 3

Exam Tip

((6x-5)2=0), इसलिए (6x-5=0) और \(x=\frac{5}{6}\) है। परीक्षा में दोहराए हुए मूल को सही भिन्न में लिखें।

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\(16x^2-24x+9=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(16x^2-24x+9=0\)?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{3}{4}\)

Step 1

Concept

((4x-3)2=0), so (4x-3=0) and \(x=\frac{3}{4}\). In exams, write the repeated root as a correct fraction.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{3}{4}\). ((4x-3)2=0), so (4x-3=0) and \(x=\frac{3}{4}\). In exams, write the repeated root as a correct fraction.

Step 3

Exam Tip

((4x-3)2=0), इसलिए (4x-3=0) और \(x=\frac{3}{4}\) है। परीक्षा में दोहराए हुए मूल को भी सही भिन्न में लिखें।

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\(4x^2-12x+9=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(4x^2-12x+9=0\)?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{3}{2}\)

Step 1

Concept

((2x-3)2=0), so (2x-3=0) and \(x=\frac{3}{2}\). In exams, write the repeated root with the correct value.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{3}{2}\). ((2x-3)2=0), so (2x-3=0) and \(x=\frac{3}{2}\). In exams, write the repeated root with the correct value.

Step 3

Exam Tip

((2x-3)2=0), इसलिए (2x-3=0) और \(x=\frac{3}{2}\) है। परीक्षा में दोहराए हुए मूल को भी सही मान से लिखें।

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\(x^2+18x+81=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(x^2+18x+81=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=-9)

Step 1

Concept

((x+9)2=0), so the repeated root is (-9). In exams, a perfect square equation has equal roots.

Step 2

Why this answer is correct

The correct answer is A. (x=-9). ((x+9)2=0), so the repeated root is (-9). In exams, a perfect square equation has equal roots.

Step 3

Exam Tip

((x+9)2=0), इसलिए दोहराया हुआ मूल (-9) है। परीक्षा में पूर्ण वर्ग समीकरण में दोनों मूल समान होते हैं।

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\(x^2+14x+49=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(x^2+14x+49=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=-7)

Step 1

Concept

((x+7)2=0), so the repeated root is (-7). In exams, ((x+a)2=0) gives (x=-a).

Step 2

Why this answer is correct

The correct answer is A. (x=-7). ((x+7)2=0), so the repeated root is (-7). In exams, ((x+a)2=0) gives (x=-a).

Step 3

Exam Tip

((x+7)2=0), इसलिए दोहराया हुआ मूल (-7) है। परीक्षा में ((x+a)2=0) से (x=-a) मिलता है।

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\(x^2-6x+9=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(x^2-6x+9=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=3)

Step 1

Concept

(x-2-6x+9=(x-3)2), so the repeated root is (3). In exams, a perfect square gives equal roots.

Step 2

Why this answer is correct

The correct answer is A. (x=3). (x-2-6x+9=(x-3)2), so the repeated root is (3). In exams, a perfect square gives equal roots.

Step 3

Exam Tip

(x-2-6x+9=(x-3)2), इसलिए दोहराया हुआ मूल (3) है। परीक्षा में पूर्ण वर्ग में दोनों मूल समान होते हैं।

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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 (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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यदि (p(x)=x-2+2\sqrt{5}x+5), तो इसका वास्तविक शून्यक क्या है?

If (p(x)=x-2+2\sqrt{5}x+5), what is its real zero?

Explanation opens after your attempt
Correct Answer

A. \(-\sqrt{5}\) दो बार\(-\sqrt{5}\) twice

Step 1

Concept

(p(x)=\(x+\sqrt{5}\)2), so the zero is \(-\sqrt{5}\) twice. A perfect-square form gives a repeated zero.

Step 2

Why this answer is correct

The correct answer is A. \(-\sqrt{5}\) दो बार / \(-\sqrt{5}\) twice. (p(x)=\(x+\sqrt{5}\)2), so the zero is \(-\sqrt{5}\) twice. A perfect-square form gives a repeated zero.

Step 3

Exam Tip

(p(x)=\(x+\sqrt{5}\)2), इसलिए शून्यक \(-\sqrt{5}\) दो बार है। पूर्ण वर्ग रूप से दोहराया शून्यक मिलता है।

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

If (p(x)=x-2+2\sqrt{3}x+3), what is its zero?

Explanation opens after your attempt
Correct Answer

A. \(-\sqrt{3}\) दो बार\(-\sqrt{3}\) twice

Step 1

Concept

(p(x)=\(x+\sqrt{3}\)2). Therefore the zero is \(-\sqrt{3}\) twice.

Step 2

Why this answer is correct

The correct answer is A. \(-\sqrt{3}\) दो बार / \(-\sqrt{3}\) twice. (p(x)=\(x+\sqrt{3}\)2). Therefore the zero is \(-\sqrt{3}\) twice.

Step 3

Exam Tip

(p(x)=\(x+\sqrt{3}\)2) है। इसलिए शून्यक \(-\sqrt{3}\) दो बार है।

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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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यदि \(x^2+mx+n\) का एक शून्यक (0) है और दूसरा शून्यक (5) है, तो (m+n) क्या होगा?

If one zero of \(x^2+mx+n\) is (0) and the other zero is (5), what is (m+n)?

Explanation opens after your attempt
Correct Answer

A. (-5)

Step 1

Concept

The sum is (5), so (m=-5), and the product is (0), so (n=0). Hence (m+n=-5).

Step 2

Why this answer is correct

The correct answer is A. (-5). The sum is (5), so (m=-5), and the product is (0), so (n=0). Hence (m+n=-5).

Step 3

Exam Tip

योग (5) है इसलिए (m=-5), और गुणनफल (0) है इसलिए (n=0)। अतः (m+n=-5)।

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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 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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यदि (p(x)=x-2-2kx+5) का एक शून्यक \(\sqrt{5}\) है, तो दूसरा शून्यक और (k) क्या होंगे?

If one zero of (p(x)=x-2-2kx+5) is \(\sqrt{5}\), what will be the other zero and (k)?

Explanation opens after your attempt
Correct Answer

A. दूसरा \(\sqrt{5}\), \(k=\sqrt{5}\)Other \(\sqrt{5}\), \(k=\sqrt{5}\)

Step 1

Concept

The product is (5), so the other zero is \(\frac{5}{\sqrt{5}}=\sqrt{5}\). The sum is \(2\sqrt{5}=2k\), hence \(k=\sqrt{5}\).

Step 2

Why this answer is correct

The correct answer is A. दूसरा \(\sqrt{5}\), \(k=\sqrt{5}\) / Other \(\sqrt{5}\), \(k=\sqrt{5}\). The product is (5), so the other zero is \(\frac{5}{\sqrt{5}}=\sqrt{5}\). The sum is \(2\sqrt{5}=2k\), hence \(k=\sqrt{5}\).

Step 3

Exam Tip

गुणनफल (5) है, इसलिए दूसरा शून्यक \(\frac{5}{\sqrt{5}}=\sqrt{5}\) होगा। योग \(2\sqrt{5}=2k\), अतः \(k=\sqrt{5}\) 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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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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यदि (p(x)=x-2-2\sqrt{5}x+5) है, तो इसके शून्यकों के बारे में सही कथन कौन सा है?

If (p(x)=x-2-2\sqrt{5}x+5), which statement about its zeroes is correct?

Explanation opens after your attempt
Correct Answer

A. दोनों शून्यक \(\sqrt{5}\) हैंBoth zeroes are \(\sqrt{5}\)

Step 1

Concept

This polynomial equals (\(x-\sqrt{5}\)2). Hence \(\sqrt{5}\) is a repeated zero.

Step 2

Why this answer is correct

The correct answer is A. दोनों शून्यक \(\sqrt{5}\) हैं / Both zeroes are \(\sqrt{5}\). This polynomial equals (\(x-\sqrt{5}\)2). Hence \(\sqrt{5}\) is a repeated zero.

Step 3

Exam Tip

यह बहुपद (\(x-\sqrt{5}\)2) के बराबर है। अतः \(\sqrt{5}\) दोहरा शून्यक है।

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बार बार दोहराए गए आकारों से रचना में कौन सा प्रभाव बनता है?

Which effect is created in composition by repeated shapes?

Explanation opens after your attempt
Correct Answer

C. लयRhythm

Step 1

Concept

Repetition creates rhythm in a composition. Exam tip: connect repeated shapes with rhythm.

Step 2

Why this answer is correct

The correct answer is C. लय / Rhythm. Repetition creates rhythm in a composition. Exam tip: connect repeated shapes with rhythm.

Step 3

Exam Tip

दोहराव रचना में लय बनाता है। परीक्षा में repeated shapes को rhythm से जोड़ें।

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चित्र में बार बार आती वक्र रेखाएं क्या बना सकती हैं?

What can repeated curved lines create in a picture?

Explanation opens after your attempt
Correct Answer

C. प्रवाहमय लयFlowing rhythm

Step 1

Concept

Repetition of curved lines creates flowing rhythm. Exam tip: connect curved repetition with movement.

Step 2

Why this answer is correct

The correct answer is C. प्रवाहमय लय / Flowing rhythm. Repetition of curved lines creates flowing rhythm. Exam tip: connect curved repetition with movement.

Step 3

Exam Tip

वक्र रेखाओं की पुनरावृत्ति प्रवाहमय लय बनाती है। परीक्षा में curved repetition को movement से जोड़ें।

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एक ही तत्व बहुत अधिक दोहराने से चित्र कैसा हो सकता है?

How can a picture become if one element is repeated too much?

Explanation opens after your attempt
Correct Answer

D. एकरसMonotonous

Step 1

Concept

Too much repetition can make a composition monotonous. Exam tip: remember balance of unity and variety.

Step 2

Why this answer is correct

The correct answer is D. एकरस / Monotonous. Too much repetition can make a composition monotonous. Exam tip: remember balance of unity and variety.

Step 3

Exam Tip

अत्यधिक दोहराव से रचना एकरस लग सकती है। परीक्षा में unity और variety दोनों का संतुलन याद रखें।

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बार बार दोहराई गई आकृतियां या रेखाएं क्या बना सकती हैं?

Repeated shapes or lines can create what?

Explanation opens after your attempt
Correct Answer

A. आकृति क्रमPattern

Step 1

Concept

Repetition creates a pattern. Exam tip: connect repetition with decorative effect.

Step 2

Why this answer is correct

The correct answer is A. आकृति क्रम / Pattern. Repetition creates a pattern. Exam tip: connect repetition with decorative effect.

Step 3

Exam Tip

दोहराव से आकृति क्रम या पैटर्न बनता है। परीक्षा में दोहराव को सजावटी प्रभाव से जोड़ें।

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कोसी नदी के बार बार धारा बदलने में कौन सा कारण सबसे महत्वपूर्ण है?

Which reason is most important in repeated channel shifting of the Kosi River?

Explanation opens after your attempt
Correct Answer

C. भारी गाद निक्षेप और कम ढालHeavy silt deposition and low gradient

Step 1

Concept

Kosi is known for channel shifting due to heavy silt and low gradient. For exams connect Kosi with floods in Bihar.

Step 2

Why this answer is correct

The correct answer is C. भारी गाद निक्षेप और कम ढाल / Heavy silt deposition and low gradient. Kosi is known for channel shifting due to heavy silt and low gradient. For exams connect Kosi with floods in Bihar.

Step 3

Exam Tip

कोसी भारी गाद और कम ढाल के कारण धारा बदलने के लिए जानी जाती है। परीक्षा में कोसी को बिहार की बाढ़ों से जोड़ें।

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ब्रह्मपुत्र नदी में नदी द्वीपों की बार बार बनावट किस कारण से जुड़ी है?

Repeated formation of river islands in Brahmaputra is linked with what?

Explanation opens after your attempt
Correct Answer

C. अधिक गाद निक्षेप और धारा परिवर्तनHeavy silt deposition and channel shifting

Step 1

Concept

Brahmaputra brings heavy silt and can shift channels which forms river islands. For exams remember Majuli.

Step 2

Why this answer is correct

The correct answer is C. अधिक गाद निक्षेप और धारा परिवर्तन / Heavy silt deposition and channel shifting. Brahmaputra brings heavy silt and can shift channels which forms river islands. For exams remember Majuli.

Step 3

Exam Tip

ब्रह्मपुत्र अधिक गाद लाती है और धारा बदल सकती है जिससे नदी द्वीप बनते हैं। परीक्षा में माजुली याद रखें।

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खादर क्षेत्र में बार बार नई उपजाऊ मिट्टी आने का मुख्य भौतिक कारण क्या है?

What is the main physical reason for repeated arrival of fresh fertile soil in Khadar?

Explanation opens after your attempt
Correct Answer

A. नदी की आवर्ती बाढ़ और निक्षेपणRecurring river floods and deposition

Step 1

Concept

Khadar receives new alluvium from river floods. For exams treat it as a more fertile floodplain.

Step 2

Why this answer is correct

The correct answer is A. नदी की आवर्ती बाढ़ और निक्षेपण / Recurring river floods and deposition. Khadar receives new alluvium from river floods. For exams treat it as a more fertile floodplain.

Step 3

Exam Tip

खादर नदी बाढ़ से नई जलोढ़ मिट्टी प्राप्त करता है। परीक्षा में इसे अधिक उपजाऊ बाढ़ मैदान मानें।

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भारतीय भौतिक भूगोल में बार बार आने वाले तुलनात्मक प्रश्नों के लिए सबसे उपयोगी जोड़ी कौन सी है?

Which pair is most useful for repeated comparison questions in Indian physical geography?

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Correct Answer

A. हिमालय और प्रायद्वीपीय पठारHimalayas and Peninsular Plateau

Step 1

Concept

The Himalayas are young fold mountains and the Peninsular Plateau is an ancient stable landmass. For exams focus on their differences.

Step 2

Why this answer is correct

The correct answer is A. हिमालय और प्रायद्वीपीय पठार / Himalayas and Peninsular Plateau. The Himalayas are young fold mountains and the Peninsular Plateau is an ancient stable landmass. For exams focus on their differences.

Step 3

Exam Tip

हिमालय युवा वलित पर्वत हैं और प्रायद्वीपीय पठार प्राचीन स्थिर भूभाग है। परीक्षा में इनके अंतर पर विशेष ध्यान दें।

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संयुक्त राष्ट्र की आलोचना में दोहराया जाने वाला मुख्य बिंदु कौन सा है?

Which point is commonly repeated in criticism of the United Nations?

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Correct Answer

D. कि बड़ी शक्तियों की राजनीति कई बार फैसलों को सीमित कर देती हैThat great power politics often limits decisions

Step 1

Concept

The effectiveness of the UN often depends on agreement among major powers. Exam tip: link this with veto and the Security Council.

Step 2

Why this answer is correct

The correct answer is D. कि बड़ी शक्तियों की राजनीति कई बार फैसलों को सीमित कर देती है / That great power politics often limits decisions. The effectiveness of the UN often depends on agreement among major powers. Exam tip: link this with veto and the Security Council.

Step 3

Exam Tip

संयुक्त राष्ट्र की प्रभावशीलता कई बार बड़ी शक्तियों की सहमति पर निर्भर हो जाती है। परीक्षा में इसे वीटो और सुरक्षा परिषद से जोड़ें।

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अलग अलग क्रांतियों की तुलना में कारणों की पुनरावृत्ति क्यों दिखती है?

Why do repeated causes appear when comparing different revolutions?

Explanation opens after your attempt
Correct Answer

A. क्योंकि आर्थिक असमानता राजनीतिक दमन और विचारधारा कई समाजों में असंतोष बनाते हैंBecause economic inequality political repression and ideology create discontent in many societies

Step 1

Concept

Many revolutions have different contexts yet similar types of discontent. For exams write both similarities and differences.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि आर्थिक असमानता राजनीतिक दमन और विचारधारा कई समाजों में असंतोष बनाते हैं / Because economic inequality political repression and ideology create discontent in many societies. Many revolutions have different contexts yet similar types of discontent. For exams write both similarities and differences.

Step 3

Exam Tip

कई क्रांतियों में अलग संदर्भ होते हुए भी असंतोष के प्रकार समान हो सकते हैं। परीक्षा में समानता और अंतर दोनों लिखें।

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सोमनाथ मंदिर का बार बार पुनर्निर्माण किस ऐतिहासिक अध्ययन को समझने में सहायक है?

The repeated reconstruction of Somnath Temple helps in understanding which historical study?

Explanation opens after your attempt
Correct Answer

A. मंदिर विनाश और पुनर्स्थापन की ऐतिहासिक प्रक्रियाHistorical process of temple destruction and restoration

Step 1

Concept

Somnath Temple is linked with many historical attacks and reconstructions. For exams understand long historical layers of a monument.

Step 2

Why this answer is correct

The correct answer is A. मंदिर विनाश और पुनर्स्थापन की ऐतिहासिक प्रक्रिया / Historical process of temple destruction and restoration. Somnath Temple is linked with many historical attacks and reconstructions. For exams understand long historical layers of a monument.

Step 3

Exam Tip

सोमनाथ मंदिर कई ऐतिहासिक आक्रमणों और पुनर्निर्माणों से जुड़ा है। परीक्षा में स्मारक की दीर्घ ऐतिहासिक परतें समझें।

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हड़प्पाई मुहरों पर एक सींग वाले पशु का बार बार आना किस अध्ययन में उपयोगी है?

Repeated appearance of the unicorn animal on Harappan seals is useful in which study?

Explanation opens after your attempt
Correct Answer

A. हड़प्पाई प्रतीकवाद और व्यापारिक पहचानHarappan symbolism and trade identity

Step 1

Concept

The unicorn animal is a major symbol on Harappan seals. For exams, avoid treating symbols as certain deities without proof.

Step 2

Why this answer is correct

The correct answer is A. हड़प्पाई प्रतीकवाद और व्यापारिक पहचान / Harappan symbolism and trade identity. The unicorn animal is a major symbol on Harappan seals. For exams, avoid treating symbols as certain deities without proof.

Step 3

Exam Tip

एक सींग वाला पशु हड़प्पाई मुहरों का प्रमुख प्रतीक है। परीक्षा में प्रतीकों को निश्चित देवता मानने से बचें।

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अशोक के स्तंभ लेखों में धम्म की पुनरावृत्ति किस प्रशासनिक आवश्यकता को दिखाती है?

Repeated emphasis on Dhamma in Ashoka's pillar edicts shows which administrative need?

Explanation opens after your attempt
Correct Answer

A. साम्राज्य में साझा नैतिक संदेश फैलानाSpreading a common moral message across the empire

Step 1

Concept

Repeated Dhamma messages were an attempt at moral unity in a diverse empire. For exams, treat inscriptions as administrative communication.

Step 2

Why this answer is correct

The correct answer is A. साम्राज्य में साझा नैतिक संदेश फैलाना / Spreading a common moral message across the empire. Repeated Dhamma messages were an attempt at moral unity in a diverse empire. For exams, treat inscriptions as administrative communication.

Step 3

Exam Tip

बार बार धम्म संदेश देना विविध साम्राज्य में नैतिक एकता की कोशिश थी। परीक्षा में अभिलेखों को प्रशासनिक संचार मानें।

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समीकरण \(25x^2-10x+1=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(25x^2-10x+1=0\)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{5}\)

Step 1

Concept

(25x-2-10x+1=(5x-1)2). Therefore the repeated root is \(\frac{1}{5}\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{5}\). (25x-2-10x+1=(5x-1)2). Therefore the repeated root is \(\frac{1}{5}\).

Step 3

Exam Tip

(25x-2-10x+1=(5x-1)2) है। इसलिए दोहराया मूल \(\frac{1}{5}\) है।

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समीकरण \(16x^2-8x+1=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(16x^2-8x+1=0\)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{4}\)

Step 1

Concept

(16x-2-8x+1=(4x-1)2). Therefore the repeated root is \(\frac{1}{4}\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{4}\). (16x-2-8x+1=(4x-1)2). Therefore the repeated root is \(\frac{1}{4}\).

Step 3

Exam Tip

(16x-2-8x+1=(4x-1)2) है। इसलिए दोहराया मूल \(\frac{1}{4}\) है।

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समीकरण \(9x^2-6x+1=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(9x^2-6x+1=0\)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{3}\)

Step 1

Concept

(9x-2-6x+1=(3x-1)2). Therefore the repeated root is \(\frac{1}{3}\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{3}\). (9x-2-6x+1=(3x-1)2). Therefore the repeated root is \(\frac{1}{3}\).

Step 3

Exam Tip

(9x-2-6x+1=(3x-1)2) है। इसलिए दोहराया मूल \(\frac{1}{3}\) है।

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समीकरण \(x^2-12x+36=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(x^2-12x+36=0\)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

(x-2-12x+36=(x-6)2). Therefore the repeated root is (6).

Step 2

Why this answer is correct

The correct answer is A. (6). (x-2-12x+36=(x-6)2). Therefore the repeated root is (6).

Step 3

Exam Tip

(x-2-12x+36=(x-6)2) है। इसलिए दोहराया हुआ मूल (6) है।

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समीकरण \(x^2-8x+16=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(x^2-8x+16=0\)?

Explanation opens after your attempt
Correct Answer

A. (4)

Step 1

Concept

(x-2-8x+16=(x-4)2). Therefore the repeated root is (4).

Step 2

Why this answer is correct

The correct answer is A. (4). (x-2-8x+16=(x-4)2). Therefore the repeated root is (4).

Step 3

Exam Tip

(x-2-8x+16=(x-4)2) है। इसलिए दोहराया हुआ मूल (4) है।

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समीकरण \(x^2+2x+1=0\) का दोहराया हुआ मूल क्या है?

What is the repeated root of \(x^2+2x+1=0\)?

Explanation opens after your attempt
Correct Answer

B. (-1)

Step 1

Concept

(x-2+2x+1=(x+1)2) so the repeated root is (-1). Recognising a perfect square is useful.

Step 2

Why this answer is correct

The correct answer is B. (-1). (x-2+2x+1=(x+1)2) so the repeated root is (-1). Recognising a perfect square is useful.

Step 3

Exam Tip

(x-2+2x+1=(x+1)2) इसलिए दोहराया मूल (-1) है। पूर्ण वर्ग को पहचानना उपयोगी है।

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युग्मनज से भ्रूण बनने की प्रक्रिया में लगातार कोशिका विभाजन क्यों आवश्यक है?

Why is repeated cell division necessary for formation of embryo from zygote?

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Correct Answer

A. एक कोशिका से बहुकोशिकीय संरचना बनने के लिएTo form a multicellular structure from one cell

Step 1

Concept

A zygote is a single cell formed after fertilisation.

Step 2

Why this answer is correct

To form an embryo the number of cells must increase.

Step 3

Exam Tip

Repeated division forms a group of cells. चरण 1: युग्मनज निषेचन के बाद बनी एक कोशिका है। चरण 2: भ्रूण बनने के लिए कोशिकाओं की संख्या बढ़नी चाहिए। चरण 3: लगातार विभाजन से कोशिकाओं का समूह बनता है।

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राष्ट्रीय प्रतीकों में बार-बार दिखाई जाने वाली वीरता किस उद्देश्य से जुड़ी थी?

Repeated display of heroism in national symbols was connected with which purpose?

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Correct Answer

A. राष्ट्र के लिए संघर्ष और बलिदान की भावना जगानाTo arouse the spirit of struggle and sacrifice for the nation

Step 1

Concept

Symbols of heroism inspire people.

Step 2

Why this answer is correct

Nationalism valued struggle and sacrifice.

Step 3

Exam Tip

Therefore images of heroism increased national loyalty. चरण 1: वीरता के प्रतीक लोगों को प्रेरित करते हैं। चरण 2: राष्ट्रवाद में संघर्ष और बलिदान को महत्वपूर्ण माना गया। चरण 3: इसलिए वीरता की छवि राष्ट्रीय निष्ठा को बढ़ाती थी।

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मेरीआन की छवि का दोहराया प्रयोग फ्रांसीसी समाज में क्या बनाता था?

What did repeated use of Marianne's image create in French society?

Explanation opens after your attempt
Correct Answer

A. साझा गणतांत्रिक राष्ट्रीय स्मृतिShared republican national memory

Step 1

Concept

Repeated symbols stay in people's minds.

Step 2

Why this answer is correct

Marianne was linked with the French republic and nation.

Step 3

Exam Tip

Therefore repeated use of her image created shared national memory. चरण 1: बार बार दिखने वाले प्रतीक लोगों के मन में टिकते हैं। चरण 2: मेरीआन फ्रांसीसी गणतंत्र और राष्ट्र से जुड़ी थी। चरण 3: इसलिए उसका दोहराया प्रयोग साझा राष्ट्रीय स्मृति बनाता था।

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मेरीआन की छवि का दोहराया प्रयोग किस प्रकार की राष्ट्रीय स्मृति बनाता था?

What kind of national memory was created by repeated use of Marianne's image?

Explanation opens after your attempt
Correct Answer

A. साझा गणतांत्रिक स्मृतिShared republican memory

Step 1

Concept

Repeated symbols stay in people's minds.

Step 2

Why this answer is correct

Marianne was linked with republic and nation.

Step 3

Exam Tip

Her repeated use created shared national memory. चरण 1: बार बार दिखने वाले प्रतीक लोगों के मन में टिक जाते हैं। चरण 2: मेरीआन गणतंत्र और राष्ट्र से जुड़ी थी। चरण 3: उसका दोहराया प्रयोग साझा राष्ट्रीय स्मृति बनाता था।

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मेरीआन की छवि का बार बार उपयोग फ्रांस में किस प्रकार की स्मृति बनाता था?

What kind of memory did repeated use of Marianne's image create in France?

Explanation opens after your attempt
Correct Answer

A. साझा गणतांत्रिक राष्ट्रीय स्मृतिShared republican national memory

Step 1

Concept

Repeated symbols create lasting identity in people's minds.

Step 2

Why this answer is correct

Marianne's image was linked with the French republic.

Step 3

Exam Tip

So repeated use of her image created shared national memory. चरण 1: दोहराए गए प्रतीक लोगों के मन में स्थायी पहचान बनाते हैं। चरण 2: मेरीआन की छवि फ्रांसीसी गणतंत्र से जुड़ी थी। चरण 3: इसलिए उसका बार बार प्रयोग साझा राष्ट्रीय स्मृति बनाता था।

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मैरिआन की छवि का बार बार दिखाई देना फ्रांसीसी नागरिकों पर क्या प्रभाव डाल सकता था?

What effect could the repeated visibility of Marianne's image have on French citizens?

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Correct Answer

A. राष्ट्रीय पहचान को रोजमर्रा की चेतना का भाग बनानाMaking national identity part of daily awareness

Step 1

Concept

A repeatedly visible symbol stays in people's minds.

Step 2

Why this answer is correct

Marianne's image linked French national identity with daily life.

Step 3

Exam Tip

In exams connect this with the spread of national consciousness. चरण 1: बार बार दिखने वाला प्रतीक मन में बैठ जाता है। चरण 2: मैरिआन की छवि ने फ्रांसीसी राष्ट्र की पहचान को दैनिक जीवन से जोड़ा। चरण 3: परीक्षा में इसे राष्ट्रीय चेतना के प्रसार से जोड़ें।

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मेरीआन की छवि का बार बार उपयोग फ्रांस में किस भावना को मजबूत करता था?

Repeated use of Marianne's image strengthened which feeling in France?

Explanation opens after your attempt
Correct Answer

A. साझा राष्ट्रीय पहचानShared national identity

Step 1

Concept

Marianne was a national symbol of France.

Step 2

Why this answer is correct

Her image connected people with a shared republican identity.

Step 3

Exam Tip

Link it with the strengthening of national identity. चरण 1: मेरीआन फ्रांस का राष्ट्रीय प्रतीक थी। चरण 2: उसकी छवि लोगों को एक साझा गणतांत्रिक पहचान से जोड़ती थी। चरण 3: इसे राष्ट्रीय पहचान की मजबूती से जोड़ें।

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माया सभ्यता में शून्य के उपयोग का महत्व किस क्षेत्र से सबसे अधिक जुड़ा था?

The importance of the use of zero in Maya civilization was most connected with which field?

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Correct Answer

A. गणना और कैलेंडरCalculation and calendar

Step 1

Concept

The Maya used zero in calculation and timekeeping. For exams connect the Maya with mathematical achievement.

Step 2

Why this answer is correct

The correct answer is A. गणना और कैलेंडर / Calculation and calendar. The Maya used zero in calculation and timekeeping. For exams connect the Maya with mathematical achievement.

Step 3

Exam Tip

माया गणना और समय मापन में शून्य का उपयोग करते थे। परीक्षा में माया को गणितीय उपलब्धि से जोड़ें।

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किस प्राचीन सभ्यता में शून्य की अवधारणा का उन्नत उपयोग माया कैलेंडर में दिखता है?

In which ancient civilization is an advanced use of zero seen in the Maya calendar?

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Correct Answer

A. मायाMaya

Step 1

Concept

Maya civilization had an advanced counting and calendar system. Link it with astronomical knowledge in exams.

Step 2

Why this answer is correct

The correct answer is A. माया / Maya. Maya civilization had an advanced counting and calendar system. Link it with astronomical knowledge in exams.

Step 3

Exam Tip

माया सभ्यता में गणना और कैलेंडर प्रणाली उन्नत थी। परीक्षा में इसे खगोल ज्ञान से जोड़ें।

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ब्रह्मगुप्त का शून्य संबंधी नियम किस क्षेत्र की उपलब्धि है?

Brahmagupta's rules related to zero are achievements of which field?

Explanation opens after your attempt
Correct Answer

A. गणितMathematics

Step 1

Concept

Brahmagupta gave important mathematical rules on zero and numbers. For exams, connect zero with a major achievement of Indian mathematics.

Step 2

Why this answer is correct

The correct answer is A. गणित / Mathematics. Brahmagupta gave important mathematical rules on zero and numbers. For exams, connect zero with a major achievement of Indian mathematics.

Step 3

Exam Tip

ब्रह्मगुप्त ने शून्य और संख्याओं पर महत्वपूर्ण गणितीय नियम दिए। परीक्षा में शून्य को भारतीय गणित की प्रमुख उपलब्धि से जोड़ें।

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संख्या रेखा पर (r(x)=4x+6) का शून्यक किस अंतराल में होगा?

In which interval will the zero of (r(x)=4x+6) lie on the number line?

Explanation opens after your attempt
Correct Answer

A. (-2) और (-1)(-2) and (-1)

Step 1

Concept

From (4x+6=0), \(x=-\frac{3}{2}\), which lies between (-2) and (-1). In exams, identify the interval of a negative fraction carefully.

Step 2

Why this answer is correct

The correct answer is A. (-2) और (-1) / (-2) and (-1). From (4x+6=0), \(x=-\frac{3}{2}\), which lies between (-2) and (-1). In exams, identify the interval of a negative fraction carefully.

Step 3

Exam Tip

(4x+6=0) से \(x=-\frac{3}{2}\), जो (-2) और (-1) के बीच है। परीक्षा में ऋणात्मक भिन्न का अंतराल सावधानी से पहचानें।

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बहुपद (q(x)=3x-7) का शून्यक संख्या रेखा पर किस दो पूर्णांकों के बीच होगा?

Between which two integers will the zero of (q(x)=3x-7) lie on the number line?

Explanation opens after your attempt
Correct Answer

B. (2) और (3)(2) and (3)

Step 1

Concept

From (3x-7=0), \(x=\frac{7}{3}\), which lies between (2) and (3). In exams, first find the zero and then locate it.

Step 2

Why this answer is correct

The correct answer is B. (2) और (3) / (2) and (3). From (3x-7=0), \(x=\frac{7}{3}\), which lies between (2) and (3). In exams, first find the zero and then locate it.

Step 3

Exam Tip

(3x-7=0) से \(x=\frac{7}{3}\), जो (2) और (3) के बीच है। परीक्षा में पहले शून्यक निकालें फिर स्थान तय करें।

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संख्या रेखा पर (p(x)=2x+5) का शून्यक किस बिंदु पर होगा?

At which point will the zero of (p(x)=2x+5) lie on the number line?

Explanation opens after your attempt
Correct Answer

B. (-2.5)

Step 1

Concept

From (2x+5=0), we get \(x=-\frac{5}{2}=-2.5\). In exams, find the zero and place it like a real number.

Step 2

Why this answer is correct

The correct answer is B. (-2.5). From (2x+5=0), we get \(x=-\frac{5}{2}=-2.5\). In exams, find the zero and place it like a real number.

Step 3

Exam Tip

(2x+5=0) से \(x=-\frac{5}{2}=-2.5\) मिलता है। परीक्षा में शून्यक निकालकर उसे वास्तविक संख्या की तरह रखें।

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संख्या रेखा पर (u(x)=6x-18) का शून्यक किस बिंदु पर होगा?

At which point will the zero of (u(x)=6x-18) lie on the number line?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

From (6x-18=0), we get (x=3). In exams, find the zero first and then place it correctly on the number line.

Step 2

Why this answer is correct

The correct answer is B. (3). From (6x-18=0), we get (x=3). In exams, find the zero first and then place it correctly on the number line.

Step 3

Exam Tip

(6x-18=0) से (x=3) मिलता है। परीक्षा में शून्यक निकालकर उसे संख्या रेखा पर सही बिंदु पर रखें।

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संख्या रेखा पर (p(x)=x) का शून्यक कौन सा है?

What is the zero of (p(x)=x) on the number line?

Explanation opens after your attempt
Correct Answer

B. (0)

Step 1

Concept

For (p(x)=x), putting (x=0) gives (p(x)=0). In exams, a zero is the value where the polynomial becomes (0).

Step 2

Why this answer is correct

The correct answer is B. (0). For (p(x)=x), putting (x=0) gives (p(x)=0). In exams, a zero is the value where the polynomial becomes (0).

Step 3

Exam Tip

(p(x)=x) में (x=0) रखने पर (p(x)=0) होता है। परीक्षा में शून्यक वह मान है जहां बहुपद का मान (0) हो।

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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 (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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संख्या रेखा पर (p(x)=x+3) के शून्यक को कहां दर्शाया जाएगा?

Where will the zero of (p(x)=x+3) be represented on the number line?

Explanation opens after your attempt
Correct Answer

B. (-3) परAt (-3)

Step 1

Concept

From (x+3=0), we get (x=-3). In exams, find the zero and show it as a point on the number line.

Step 2

Why this answer is correct

The correct answer is B. (-3) पर / At (-3). From (x+3=0), we get (x=-3). In exams, find the zero and show it as a point on the number line.

Step 3

Exam Tip

(x+3=0) से (x=-3) मिलता है। परीक्षा में शून्यक निकालकर उसे संख्या रेखा पर बिंदु की तरह दिखाएं।

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यदि (p(x)=x-3-2x-2-13x-10) है, तो इनमें से कौन (p(x)) का शून्यक है?

If (p(x)=x-3-2x-2-13x-10), which of the following is a zero of (p(x))?

Explanation opens after your attempt
Correct Answer

D. -(2)

Step 1

Concept

(p(-2)=-8-8+26-10=0), so (-2) is a zero. Test small option values by direct substitution.

Step 2

Why this answer is correct

The correct answer is D. -(2). (p(-2)=-8-8+26-10=0), so (-2) is a zero. Test small option values by direct substitution.

Step 3

Exam Tip

(p(-2)=-8-8+26-10=0), इसलिए (-2) शून्यक है। विकल्पों में दिए छोटे मानों को सीधे रखकर जाँचें।

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(p(x)=16x-2-24x+9) में कौन सा मान शून्य है?

Which value is a zero of (p(x)=16x-2-24x+9)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{3}{4}\)

Step 1

Concept

(16x-2-24x+9=(4x-3)2), so the zero is \(x=\frac{3}{4}\). Recognize the perfect square.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{3}{4}\). (16x-2-24x+9=(4x-3)2), so the zero is \(x=\frac{3}{4}\). Recognize the perfect square.

Step 3

Exam Tip

(16x-2-24x+9=(4x-3)2), इसलिए शून्य \(x=\frac{3}{4}\) है। पूर्ण वर्ग पहचानें।

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यदि (x=-3), बहुपद (p(x)=x-2+kx-18) का शून्य है, तो (k) क्या है?

If (x=-3) is a zero of (p(x)=x-2+kx-18), what is (k)?

Explanation opens after your attempt
Correct Answer

A. (-3)

Step 1

Concept

(p(-3)=9-3k-18=0), so (-3k=9) and (k=-3). When a zero is given, set the polynomial value equal to (0).

Step 2

Why this answer is correct

The correct answer is A. (-3). (p(-3)=9-3k-18=0), so (-3k=9) and (k=-3). When a zero is given, set the polynomial value equal to (0).

Step 3

Exam Tip

(p(-3)=9-3k-18=0), इसलिए (-3k=9) और (k=-3)। शून्य दिए होने पर बहुपद का मान (0) रखें।

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यदि (x=0), (p(x)=7x-3-2x) का शून्यक है, तो कारण क्या है?

If (x=0) is a zero of (p(x)=7x-3-2x), what is the reason?

Explanation opens after your attempt
Correct Answer

A. हर पद में (x) गुणनखंड हैEvery term has factor (x)

Step 1

Concept

(p(x)=x\(7x^2-2\)), so at (x=0) the value is (0). If every term has (x), then (0) is a zero.

Step 2

Why this answer is correct

The correct answer is A. हर पद में (x) गुणनखंड है / Every term has factor (x). (p(x)=x\(7x^2-2\)), so at (x=0) the value is (0). If every term has (x), then (0) is a zero.

Step 3

Exam Tip

(p(x)=x\(7x^2-2\)), इसलिए (x=0) पर मान (0) होता है। यदि हर पद में (x) हो, तो (0) शून्यक होता है।

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यदि (p(x)=4x-12), तो इसका शून्यक क्या है?

If (p(x)=4x-12), what is its zero?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

From (4x-12=0), we get (x=3). A zero is the value where the polynomial becomes (0).

Step 2

Why this answer is correct

The correct answer is A. (3). From (4x-12=0), we get (x=3). A zero is the value where the polynomial becomes (0).

Step 3

Exam Tip

(4x-12=0) से (x=3) मिलता है। शून्यक वह मान है जहाँ बहुपद का मान (0) हो।

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यदि (p(x)=ax+b) और \(a\neq0\), तो इसका शून्यक क्या है?

If (p(x)=ax+b) and \(a\neq0\), what is its zero?

Explanation opens after your attempt
Correct Answer

A. -\(\frac{b}{a}\)

Step 1

Concept

Putting (ax+b=0) gives \(x=-\frac{b}{a}\). A linear polynomial has exactly one zero.

Step 2

Why this answer is correct

The correct answer is A. -\(\frac{b}{a}\). Putting (ax+b=0) gives \(x=-\frac{b}{a}\). A linear polynomial has exactly one zero.

Step 3

Exam Tip

(ax+b=0) रखने पर \(x=-\frac{b}{a}\) मिलता है। रेखीय बहुपद में केवल एक शून्यक 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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यदि (p(x)=x-3-4x-2+x+6), तो इनमें से कौन (p(x)) का शून्यक है?

If (p(x)=x-3-4x-2+x+6), which of these is a zero of (p(x))?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

(p(2)=8-16+2+6=0), so (2) is a zero. Test small integer options first.

Step 2

Why this answer is correct

The correct answer is A. (2). (p(2)=8-16+2+6=0), so (2) is a zero. Test small integer options first.

Step 3

Exam Tip

(p(2)=8-16+2+6=0), इसलिए (2) शून्यक है। विकल्पों में छोटे पूर्णांकों को पहले जाँचें।

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(p(x)=9x-2+12x+4) में कौन सा मान शून्य है?

Which value is a zero of (p(x)=9x-2+12x+4)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

(9x-2+12x+4=(3x+2)2), so the zero is \(x=-\frac{2}{3}\). Recognize the perfect square.

Step 2

Why this answer is correct

The correct answer is A. \(-\frac{2}{3}\). (9x-2+12x+4=(3x+2)2), so the zero is \(x=-\frac{2}{3}\). Recognize the perfect square.

Step 3

Exam Tip

(9x-2+12x+4=(3x+2)2), इसलिए शून्य \(x=-\frac{2}{3}\) है। पूर्ण वर्ग पहचानें।

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यदि (x=-2), बहुपद (p(x)=x-2+kx-8) का शून्य है, तो (k) क्या है?

If (x=-2) is a zero of (p(x)=x-2+kx-8), what is (k)?

Explanation opens after your attempt
Correct Answer

B. (-2)

Step 1

Concept

(p(-2)=4-2k-8=0), so (-2k=4) and (k=-2). When a zero is given, set the polynomial value equal to (0).

Step 2

Why this answer is correct

The correct answer is B. (-2). (p(-2)=4-2k-8=0), so (-2k=4) and (k=-2). When a zero is given, set the polynomial value equal to (0).

Step 3

Exam Tip

(p(-2)=4-2k-8=0), इसलिए (-2k=4) और (k=-2)। शून्य दिए होने पर बहुपद का मान (0) रखें।

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यदि (p(x)=kx-2-5x+6) का एक शून्यक (2) है, तो (k) का मान क्या होगा?

If (2) is a zero of (p(x)=kx-2-5x+6), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

Putting (p(2)=0) gives (4k-10+6=0), so (k=1). For a zero, use (p\(\alpha\)=0).

Step 2

Why this answer is correct

The correct answer is A. (1). Putting (p(2)=0) gives (4k-10+6=0), so (k=1). For a zero, use (p\(\alpha\)=0).

Step 3

Exam Tip

(p(2)=0) रखने पर (4k-10+6=0) से (k=1) मिलता है। शून्यक के लिए (p\(\alpha\)=0) लगाएं।

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(p(x)=4x-2-12x+9) में कौन सा मान शून्य है?

Which value is a zero of (p(x)=4x-2-12x+9)?

Explanation opens after your attempt
Correct Answer

B. \(\frac{3}{2}\)

Step 1

Concept

(p\left\(\frac{3}{2}\right\)=9-18+9=0). While using a fraction, square and multiply correctly.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{3}{2}\). (p\left\(\frac{3}{2}\right\)=9-18+9=0). While using a fraction, square and multiply correctly.

Step 3

Exam Tip

(p\left\(\frac{3}{2}\right\)=9-18+9=0)। भिन्न मान रखते समय वर्ग और गुणा सही करें।

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यदि (x=3), बहुपद (p(x)=x-2-kx+12) का शून्य है, तो (k) क्या है?

If (x=3) is a zero of (p(x)=x-2-kx+12), what is (k)?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

(p(3)=9-3k+12=0), so (21=3k) and (k=7). For a zero, set the polynomial value equal to (0).

Step 2

Why this answer is correct

The correct answer is C. (7). (p(3)=9-3k+12=0), so (21=3k) and (k=7). For a zero, set the polynomial value equal to (0).

Step 3

Exam Tip

(p(3)=9-3k+12=0), इसलिए (21=3k) और (k=7)। शून्य की शर्त में बहुपद का मान (0) रखें।

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यदि (p(x)=ax-2+4x-12) और (x=2) इसका शून्य है, तो (a) क्या होगा?

If (p(x)=ax-2+4x-12) and (x=2) is its zero, what is (a)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

(p(2)=4a+8-12=0), so (4a=4) and (a=1). When a zero is given, set the polynomial value equal to (0).

Step 2

Why this answer is correct

The correct answer is A. (1). (p(2)=4a+8-12=0), so (4a=4) and (a=1). When a zero is given, set the polynomial value equal to (0).

Step 3

Exam Tip

(p(2)=4a+8-12=0), इसलिए (4a=4) और (a=1)। शून्य दिए होने पर बहुपद का मान (0) रखें।

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यदि (p(x)=cx+d) और \(c\ne0\), तो इसका शून्य क्या होगा?

If (p(x)=cx+d) and \(c\ne0\), what will be its zero?

Explanation opens after your attempt
Correct Answer

B. \(-\frac{d}{c}\)

Step 1

Concept

From (cx+d=0), we get \(x=-\frac{d}{c}\). Remember the negative sign in the formula.

Step 2

Why this answer is correct

The correct answer is B. \(-\frac{d}{c}\). From (cx+d=0), we get \(x=-\frac{d}{c}\). Remember the negative sign in the formula.

Step 3

Exam Tip

(cx+d=0) से \(x=-\frac{d}{c}\) मिलता है। सूत्र में ऋण चिह्न ध्यान रखें।

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(p(x)=4x+20) का शून्य कौन सा है?

Which is the zero of (p(x)=4x+20)?

Explanation opens after your attempt
Correct Answer

B. (-5)

Step 1

Concept

From (4x+20=0), we get (x=-5). A zero is the value that makes the polynomial equal to (0).

Step 2

Why this answer is correct

The correct answer is B. (-5). From (4x+20=0), we get (x=-5). A zero is the value that makes the polynomial equal to (0).

Step 3

Exam Tip

(4x+20=0) से (x=-5) मिलता है। शून्य वह मान है जिससे बहुपद (0) हो जाए।

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(p(x)=9x-27) का शून्य क्या है?

What is the zero of (p(x)=9x-27)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

From (9x-27=0), we get (x=3). Find the zero of a linear polynomial by solving the equation.

Step 2

Why this answer is correct

The correct answer is B. (3). From (9x-27=0), we get (x=3). Find the zero of a linear polynomial by solving the equation.

Step 3

Exam Tip

(9x-27=0) से (x=3) मिलता है। रैखिक बहुपद का शून्य समीकरण हल करके निकालें।

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किस मान के लिए \(x^2-6x+m\) में (x=2) शून्य होगा?

For what value of (m) will (x=2) be a zero of \(x^2-6x+m\)?

Explanation opens after your attempt
Correct Answer

B. (8)

Step 1

Concept

(4-12+m=0), so (m=8). When a zero is given, set the polynomial value equal to (0).

Step 2

Why this answer is correct

The correct answer is B. (8). (4-12+m=0), so (m=8). When a zero is given, set the polynomial value equal to (0).

Step 3

Exam Tip

(4-12+m=0), इसलिए (m=8)। शून्य दिए होने पर बहुपद का मान (0) रखें।

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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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यदि (p(x)=x-2+px+16) और (4) इसका शून्य है, तो (p) का मान क्या है?

If (4) is a zero of (p(x)=x-2+px+16), what is the value of (p)?

Explanation opens after your attempt
Correct Answer

A. (-8)

Step 1

Concept

\(4^2+4p+16=0\) gives (32+4p=0). Therefore (p=-8).

Step 2

Why this answer is correct

The correct answer is A. (-8). \(4^2+4p+16=0\) gives (32+4p=0). Therefore (p=-8).

Step 3

Exam Tip

\(4^2+4p+16=0\) से (32+4p=0) मिलता है। इसलिए (p=-8) है।

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यदि (p(x)=x-2-9), तो कौन सी संख्या (p(x)) का शून्य नहीं है?

If (p(x)=x-2-9), which number is not a zero of (p(x))?

Explanation opens after your attempt
Correct Answer

C. (0)

Step 1

Concept

(p(0)=02-9=-9), which is not (0). So (0) is not a zero.

Step 2

Why this answer is correct

The correct answer is C. (0). (p(0)=02-9=-9), which is not (0). So (0) is not a zero.

Step 3

Exam Tip

(p(0)=02-9=-9) है जो (0) नहीं है। इसलिए (0) शून्य नहीं है।

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यदि (p(x)=kx+12) का शून्य (3) है, तो (k) का मान क्या है?

If (3) is a zero of (p(x)=kx+12), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

B. (-4)

Step 1

Concept

From (p(3)=0), we get (3k+12=0). Therefore (k=-4).

Step 2

Why this answer is correct

The correct answer is B. (-4). From (p(3)=0), we get (3k+12=0). Therefore (k=-4).

Step 3

Exam Tip

(p(3)=0) से (3k+12=0) मिलता है। इसलिए (k=-4) है।

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