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Class 11 Mathematics Hard Quiz

Level 35 • 50/50 questions • 30 seconds per question.

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ग्राफ (y=|x-4|-2) का शीर्ष और न्यूनतम मान कौन-सा है?

Which option gives the vertex and minimum value of the graph (y=|x-4|-2)?

Explanation opens after your attempt
Correct Answer

A. शीर्ष ((4,-2)) और न्यूनतम (-2)vertex ((4,-2)) and minimum (-2)

Step 1

Concept

The minimum of (|x-4|) is (0) at (x=4), so (y=-2). In exams, set the inside of the modulus to (0) to find the vertex.

Step 2

Why this answer is correct

The correct answer is A. शीर्ष ((4,-2)) और न्यूनतम (-2) / vertex ((4,-2)) and minimum (-2). The minimum of (|x-4|) is (0) at (x=4), so (y=-2). In exams, set the inside of the modulus to (0) to find the vertex.

Step 3

Exam Tip

(|x-4|) का न्यूनतम (0) (x=4) पर होता है इसलिए (y=-2)। परीक्षा में मापांक के अंदर को (0) रखकर शीर्ष निकालें।

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फलन (f(x)=\frac{1}{(x-2)2}+3) के ग्राफ के आसमापी कौन-से हैं?

Which asymptotes belong to the graph of (f(x)=\frac{1}{(x-2)2}+3)?

Explanation opens after your attempt
Correct Answer

A. (x=2) और (y=3)(x=2) and (y=3)

Step 1

Concept

The denominator ((x-2)2) becomes zero at (x=2), and the outside (3) gives horizontal asymptote (y=3). In exams, exclude the value that makes a squared denominator zero.

Step 2

Why this answer is correct

The correct answer is A. (x=2) और (y=3) / (x=2) and (y=3). The denominator ((x-2)2) becomes zero at (x=2), and the outside (3) gives horizontal asymptote (y=3). In exams, exclude the value that makes a squared denominator zero.

Step 3

Exam Tip

हर ((x-2)2) (x=2) पर शून्य होता है और बाहरी (3) से क्षैतिज आसमापी (y=3) मिलता है। परीक्षा में वर्ग वाले हर में भी शून्य बनाने वाला मान हटाएं।

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फलन (f(x)=-(x-3)2-1) के ग्राफ का अधिकतम मान क्या है?

What is the maximum value of the graph of (f(x)=-(x-3)2-1)?

Explanation opens after your attempt
Correct Answer

A. ( -1 )

Step 1

Concept

The parabola opens downward and the vertex (y)-value is (-1). In exams, the vertex of a downward parabola gives the maximum.

Step 2

Why this answer is correct

The correct answer is A. ( -1 ). The parabola opens downward and the vertex (y)-value is (-1). In exams, the vertex of a downward parabola gives the maximum.

Step 3

Exam Tip

परवलय नीचे खुलता है और शीर्ष का (y)-मान (-1) है। परीक्षा में नीचे खुलने वाले परवलय का शीर्ष अधिकतम होता है।

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फलन (f(x)=\sqrt{2x-5}) के ग्राफ का प्रांत क्या है?

What is the domain of the graph of (f(x)=\sqrt{2x-5})?

Explanation opens after your attempt
Correct Answer

A. \(\left[\frac{5}{2},\infty\right\))

Step 1

Concept

For the square root, \(2x-5\ge0\), so \(x\ge\frac{5}{2}\). In exams, keep the expression inside the square root non-negative.

Step 2

Why this answer is correct

The correct answer is A. \(\left[\frac{5}{2},\infty\right\)). For the square root, \(2x-5\ge0\), so \(x\ge\frac{5}{2}\). In exams, keep the expression inside the square root non-negative.

Step 3

Exam Tip

वर्गमूल के लिए \(2x-5\ge0\) इसलिए \(x\ge\frac{5}{2}\)। परीक्षा में वर्गमूल के अंदर की राशि अनऋणात्मक रखें।

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ग्राफ \(y=\frac{4}{x+2}+3\) के आसमापी कौन-से हैं?

Which asymptotes belong to the graph \(y=\frac{4}{x+2}+3\)?

Explanation opens after your attempt
Correct Answer

A. (x=-2) और (y=3)(x=-2) and (y=3)

Step 1

Concept

The denominator (x+2) is zero at (x=-2), and the outside (3) gives horizontal asymptote (y=3). In exams, check both denominator and vertical shift.

Step 2

Why this answer is correct

The correct answer is A. (x=-2) और (y=3) / (x=-2) and (y=3). The denominator (x+2) is zero at (x=-2), and the outside (3) gives horizontal asymptote (y=3). In exams, check both denominator and vertical shift.

Step 3

Exam Tip

हर (x+2) शून्य होने पर (x=-2) है और बाहरी (3) से क्षैतिज आसमापी (y=3) है। परीक्षा में हर और ऊर्ध्व विस्थापन दोनों जांचें।

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ग्राफ (y=|x-5|-|x+1|) का \(x\ge5\) पर मान क्या है?

What is the value of the graph (y=|x-5|-|x+1|) for \(x\ge5\)?

Explanation opens after your attempt
Correct Answer

A. ( -6 )

Step 1

Concept

For \(x\ge5\), (|x-5|=x-5) and (|x+1|=x+1), so (y=-6). In exams, open modulus according to the interval.

Step 2

Why this answer is correct

The correct answer is A. ( -6 ). For \(x\ge5\), (|x-5|=x-5) and (|x+1|=x+1), so (y=-6). In exams, open modulus according to the interval.

Step 3

Exam Tip

\(x\ge5\) पर (|x-5|=x-5) और (|x+1|=x+1) इसलिए (y=-6)। परीक्षा में मापांक को अंतराल के अनुसार खोलें।

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महत्तम पूर्णांक फलन (f(x)=\lfloor x+1\rfloor) में \(x\in[-3,-2\)) पर ग्राफ का मान क्या है?

For the greatest integer function (f(x)=\lfloor x+1\rfloor), what is the graph value on \(x\in[-3,-2\))?

Explanation opens after your attempt
Correct Answer

B. ( -2 )

Step 1

Concept

When \(x\in[-3,-2\)), \(x+1\in[-2,-1\)), so \(\lfloor x+1\rfloor=-2\). In exams, first transform the inside interval.

Step 2

Why this answer is correct

The correct answer is B. ( -2 ). When \(x\in[-3,-2\)), \(x+1\in[-2,-1\)), so \(\lfloor x+1\rfloor=-2\). In exams, first transform the inside interval.

Step 3

Exam Tip

\(x\in[-3,-2\)) होने पर \(x+1\in[-2,-1\)) इसलिए \(\lfloor x+1\rfloor=-2\)। परीक्षा में पहले अंदर का अंतराल बदलें।

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साइनम फलन (f(x)=\operatorname{sgn}(2-x)) में (x>2) पर ग्राफ का मान क्या है?

For the signum function (f(x)=\operatorname{sgn}(2-x)), what is the graph value for (x>2)?

Explanation opens after your attempt
Correct Answer

A. ( -1 )

Step 1

Concept

For (x>2), (2-x<0), so the signum value is (-1). In exams, check the sign of the inside expression.

Step 2

Why this answer is correct

The correct answer is A. ( -1 ). For (x>2), (2-x<0), so the signum value is (-1). In exams, check the sign of the inside expression.

Step 3

Exam Tip

(x>2) पर (2-x<0) इसलिए साइनम मान (-1) है। परीक्षा में साइनम में अंदर की राशि का चिह्न देखें।

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ग्राफ \(y=x^2-8x+12\) (x)-अक्ष को किन बिंदुओं पर काटता है?

At which points does the graph \(y=x^2-8x+12\) cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((2,0)) और ((6,0))((2,0)) and ((6,0))

Step 1

Concept

Since (x-2-8x+12=(x-2)(x-6)), the values are (x=2) and (x=6). In exams, set (y=0) for (x)-intercepts.

Step 2

Why this answer is correct

The correct answer is A. ((2,0)) और ((6,0)) / ((2,0)) and ((6,0)). Since (x-2-8x+12=(x-2)(x-6)), the values are (x=2) and (x=6). In exams, set (y=0) for (x)-intercepts.

Step 3

Exam Tip

(x-2-8x+12=(x-2)(x-6)) इसलिए (x=2) और (x=6) हैं। परीक्षा में (x)-अवरोध के लिए (y=0) रखें।

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ग्राफ (y=3|x+2|-9) (x)-अक्ष को किन (x)-मानों पर काटता है?

At which (x)-values does the graph (y=3|x+2|-9) cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (x=-5) और (x=1)(x=-5) and (x=1)

Step 1

Concept

From (3|x+2|-9=0), we get (|x+2|=3). In exams, take both cases in a modulus equation.

Step 2

Why this answer is correct

The correct answer is A. (x=-5) और (x=1) / (x=-5) and (x=1). From (3|x+2|-9=0), we get (|x+2|=3). In exams, take both cases in a modulus equation.

Step 3

Exam Tip

(3|x+2|-9=0) से (|x+2|=3) मिलता है। परीक्षा में मापांक समीकरण में दोनों स्थितियां लें।

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फलन (f(x)=5-\sqrt{x+4}) के ग्राफ का परिसर क्या है?

What is the range of the graph of (f(x)=5-\sqrt{x+4})?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,5]\)

Step 1

Concept

Since \(\sqrt{x+4}\ge0\), \(5-\sqrt{x+4}\le5\). In exams, a negative square-root term makes the graph go downward.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,5]\). Since \(\sqrt{x+4}\ge0\), \(5-\sqrt{x+4}\le5\). In exams, a negative square-root term makes the graph go downward.

Step 3

Exam Tip

\(\sqrt{x+4}\ge0\) इसलिए \(5-\sqrt{x+4}\le5\)। परीक्षा में ऋणात्मक वर्गमूल के कारण ग्राफ नीचे जाता है।

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कौन-सा परिवर्तन (y=|x|) से (y=2|x+3|-1) देता है?

Which transformation changes (y=|x|) into (y=2|x+3|-1)?

Explanation opens after your attempt
Correct Answer

B. (3) बाईं ओर, (2) गुना ऊर्ध्व खिंचाव, (1) नीचे(3) left, vertical stretch by (2), (1) down

Step 1

Concept

(x+3) shifts (3) units left, outside (2) vertically stretches, and (-1) shifts down. In exams, read inside and outside transformations separately.

Step 2

Why this answer is correct

The correct answer is B. (3) बाईं ओर, (2) गुना ऊर्ध्व खिंचाव, (1) नीचे / (3) left, vertical stretch by (2), (1) down. (x+3) shifts (3) units left, outside (2) vertically stretches, and (-1) shifts down. In exams, read inside and outside transformations separately.

Step 3

Exam Tip

(x+3) बाईं ओर (3) इकाई, बाहरी (2) ऊर्ध्व खिंचाव और (-1) नीचे खिसकाता है। परीक्षा में अंदर और बाहर के परिवर्तनों को अलग पढ़ें।

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ग्राफ \(y=x^2-1\) और (y=2x+2) के प्रतिच्छेदों के (x)-मान कौन-से हैं?

What are the (x)-values of intersections of the graphs \(y=x^2-1\) and (y=2x+2)?

Explanation opens after your attempt
Correct Answer

A. (x=-1) और (x=3)(x=-1) and (x=3)

Step 1

Concept

Equating gives \(x^2-1=2x+2\), that is \(x^2-2x-3=0\). In exams, set the two (y)-values equal for intersections.

Step 2

Why this answer is correct

The correct answer is A. (x=-1) और (x=3) / (x=-1) and (x=3). Equating gives \(x^2-1=2x+2\), that is \(x^2-2x-3=0\). In exams, set the two (y)-values equal for intersections.

Step 3

Exam Tip

समान करने पर \(x^2-1=2x+2\) यानी \(x^2-2x-3=0\) मिलता है। परीक्षा में प्रतिच्छेद के लिए दोनों (y)-मान बराबर करें।

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ग्राफ \(y=\frac{1}{x-4}\) का लंबवत आसमापी कौन-सा है?

What is the vertical asymptote of the graph \(y=\frac{1}{x-4}\)?

Explanation opens after your attempt
Correct Answer

A. (x=4)

Step 1

Concept

The denominator (x-4) becomes zero at (x=4). In exams, find the vertical asymptote of a reciprocal graph from the denominator.

Step 2

Why this answer is correct

The correct answer is A. (x=4). The denominator (x-4) becomes zero at (x=4). In exams, find the vertical asymptote of a reciprocal graph from the denominator.

Step 3

Exam Tip

हर (x-4) शून्य होने पर (x=4) मिलता है। परीक्षा में पारस्परिक ग्राफ का लंबवत आसमापी हर से निकालें।

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फलन (f(x)=|3x-12|) का शीर्ष कौन-सा है?

What is the vertex of the function (f(x)=|3x-12|)?

Explanation opens after your attempt
Correct Answer

A. ((4,0))

Step 1

Concept

From (3x-12=0), (x=4) and the minimum is (0). In exams, find the vertex by setting the inside of the modulus to (0).

Step 2

Why this answer is correct

The correct answer is A. ((4,0)). From (3x-12=0), (x=4) and the minimum is (0). In exams, find the vertex by setting the inside of the modulus to (0).

Step 3

Exam Tip

(3x-12=0) से (x=4) और न्यूनतम (0) मिलता है। परीक्षा में मापांक के अंदर को (0) रखकर शीर्ष खोजें।

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फलन (f(x)=\lfloor 2x\rfloor) में \(x\in\left[\frac{3}{2},2\right\)) पर ग्राफ का मान कौन-सा हो सकता है?

For (f(x)=\lfloor 2x\rfloor), which graph value can occur on \(x\in\left[\frac{3}{2},2\right\))?

Explanation opens after your attempt
Correct Answer

A. (3) और (4)(3) and (4)

Step 1

Concept

In this interval, (2x) starts in ([3,4)) and also reaches values giving (4) after \(2x\ge4\). In exams, split the inside interval into subintervals.

Step 2

Why this answer is correct

The correct answer is A. (3) और (4) / (3) and (4). In this interval, (2x) starts in ([3,4)) and also reaches values giving (4) after \(2x\ge4\). In exams, split the inside interval into subintervals.

Step 3

Exam Tip

इस अंतराल में \(2x\in[3,4\)) से शुरू होकर (4) के बाद मान (4) भी आता है क्योंकि (2x<4) नहीं रहता। परीक्षा में अंदर के अंतराल को उपखंडों में बांटें।

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ग्राफ \(y=\sqrt{16-x^2}\) किस आकृति का ऊपरी भाग है?

The graph \(y=\sqrt{16-x^2}\) is the upper part of which figure?

Explanation opens after your attempt
Correct Answer

A. केंद्र ((0,0)) और त्रिज्या (4) वाला वृत्तcircle with centre ((0,0)) and radius (4)

Step 1

Concept

Squaring gives \(x^2+y^2=16\) with \(y\ge0\). In exams, identify \(\sqrt{r^2-x^2}\) as an upper semicircle.

Step 2

Why this answer is correct

The correct answer is A. केंद्र ((0,0)) और त्रिज्या (4) वाला वृत्त / circle with centre ((0,0)) and radius (4). Squaring gives \(x^2+y^2=16\) with \(y\ge0\). In exams, identify \(\sqrt{r^2-x^2}\) as an upper semicircle.

Step 3

Exam Tip

वर्ग करने पर \(x^2+y^2=16\) और \(y\ge0\) मिलता है। परीक्षा में \(\sqrt{r^2-x^2}\) को ऊपरी अर्धवृत्त पहचानें।

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ग्राफ \(y=x^3+27\) (x)-अक्ष को किस बिंदु पर काटता है?

At which point does the graph \(y=x^3+27\) cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

For the (x)-axis, \(x^3+27=0\), so (x=-3). In exams, find the real root of a cubic carefully.

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). For the (x)-axis, \(x^3+27=0\), so (x=-3). In exams, find the real root of a cubic carefully.

Step 3

Exam Tip

(x)-अक्ष के लिए \(x^3+27=0\) इसलिए (x=-3)। परीक्षा में घन समीकरण का वास्तविक मूल ध्यान से निकालें।

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फलन (f(x)=\frac{|x|}{x}) का ग्राफ किस फलन जैसा है जब \(x\ne0\)?

The graph of (f(x)=\frac{|x|}{x}) is like which function when \(x\ne0\)?

Explanation opens after your attempt
Correct Answer

A. (f(x)=\operatorname{sgn}(x))

Step 1

Concept

\(\frac{|x|}{x}=1\) for (x>0) and (-1) for (x<0). In exams, exclude (x=0) from the domain.

Step 2

Why this answer is correct

The correct answer is A. (f(x)=\operatorname{sgn}(x)). \(\frac{|x|}{x}=1\) for (x>0) and (-1) for (x<0). In exams, exclude (x=0) from the domain.

Step 3

Exam Tip

\(\frac{|x|}{x}=1\) जब (x>0) और (-1) जब (x<0) होता है। परीक्षा में (x=0) को प्रांत से हटाएं।

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ग्राफ \(y=4-\sqrt{x-2}\) का अधिकतम मान किस बिंदु पर मिलता है?

At which point is the maximum value of the graph \(y=4-\sqrt{x-2}\) obtained?

Explanation opens after your attempt
Correct Answer

A. ((2,4))

Step 1

Concept

The minimum of \(\sqrt{x-2}\) is (0) at (x=2), so (y=4). In exams, a negative square-root graph has maximum at the starting point.

Step 2

Why this answer is correct

The correct answer is A. ((2,4)). The minimum of \(\sqrt{x-2}\) is (0) at (x=2), so (y=4). In exams, a negative square-root graph has maximum at the starting point.

Step 3

Exam Tip

\(\sqrt{x-2}\) का न्यूनतम (0) (x=2) पर है इसलिए (y=4)। परीक्षा में ऋणात्मक वर्गमूल ग्राफ का अधिकतम आरंभिक बिंदु पर होता है।

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फलन (f(x)=2x-2-12x+7) के ग्राफ की सममिति अक्ष क्या है?

What is the axis of symmetry of the graph of (f(x)=2x-2-12x+7)?

Explanation opens after your attempt
Correct Answer

A. (x=3)

Step 1

Concept

The axis of symmetry is \(x=-\frac{b}{2a}=-\frac{-12}{4}=3\). In exams, use the axis formula for a quadratic graph.

Step 2

Why this answer is correct

The correct answer is A. (x=3). The axis of symmetry is \(x=-\frac{b}{2a}=-\frac{-12}{4}=3\). In exams, use the axis formula for a quadratic graph.

Step 3

Exam Tip

सममिति अक्ष \(x=-\frac{b}{2a}=-\frac{-12}{4}=3\) है। परीक्षा में द्विघात ग्राफ की अक्ष सूत्र से निकालें।

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ग्राफ \(y=\frac{5x-1}{2x+3}\) का क्षैतिज आसमापी क्या है?

What is the horizontal asymptote of the graph \(y=\frac{5x-1}{2x+3}\)?

Explanation opens after your attempt
Correct Answer

A. \(y=\frac{5}{2}\)

Step 1

Concept

The degrees of numerator and denominator are equal, so the ratio of leading coefficients is \(\frac{5}{2}\). In exams, use the ratio of leading coefficients for equal degrees.

Step 2

Why this answer is correct

The correct answer is A. \(y=\frac{5}{2}\). The degrees of numerator and denominator are equal, so the ratio of leading coefficients is \(\frac{5}{2}\). In exams, use the ratio of leading coefficients for equal degrees.

Step 3

Exam Tip

अंश और हर की घात समान है इसलिए अग्र गुणांकों का अनुपात \(\frac{5}{2}\) है। परीक्षा में समान घातों पर अग्र गुणांक का अनुपात लें।

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कौन-सा बिंदु ग्राफ \(y=\lfloor x\rfloor-2\) पर स्थित नहीं है?

Which point does not lie on the graph \(y=\lfloor x\rfloor-2\)?

Explanation opens after your attempt
Correct Answer

D. ((3.8,0))

Step 1

Concept

\(\lfloor3.8\rfloor-2=1\), so ((3.8,0)) is not on the graph. In exams, first find the greatest integer of (x).

Step 2

Why this answer is correct

The correct answer is D. ((3.8,0)). \(\lfloor3.8\rfloor-2=1\), so ((3.8,0)) is not on the graph. In exams, first find the greatest integer of (x).

Step 3

Exam Tip

\(\lfloor3.8\rfloor-2=1\) इसलिए ((3.8,0)) ग्राफ पर नहीं है। परीक्षा में पहले (x) का महत्तम पूर्णांक निकालें।

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ग्राफ (y=|x-7|+|x-2|) का न्यूनतम मान क्या है?

What is the minimum value of the graph (y=|x-7|+|x-2|)?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

The distance between (7) and (2) is (5), so the minimum sum is (5). In exams, remember the minimum of (|x-a|+|x-b|) is (|a-b|).

Step 2

Why this answer is correct

The correct answer is B. (5). The distance between (7) and (2) is (5), so the minimum sum is (5). In exams, remember the minimum of (|x-a|+|x-b|) is (|a-b|).

Step 3

Exam Tip

दो बिंदुओं (7) और (2) के बीच दूरी (5) है इसलिए योग का न्यूनतम (5) है। परीक्षा में (|x-a|+|x-b|) का न्यूनतम (|a-b|) याद रखें।

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फलन (f(x)=x-3) और (g(x)=4x) के ग्राफों के प्रतिच्छेदों के (x)-मान कौन-से हैं?

What are the (x)-values of intersections of the graphs of (f(x)=x-3) and (g(x)=4x)?

Explanation opens after your attempt
Correct Answer

A. (x=-2), (x=0), (x=2)

Step 1

Concept

From \(x^3=4x\), we get (x\(x^2-4\)=0). In exams, equate the two functions for intersections.

Step 2

Why this answer is correct

The correct answer is A. (x=-2), (x=0), (x=2). From \(x^3=4x\), we get (x\(x^2-4\)=0). In exams, equate the two functions for intersections.

Step 3

Exam Tip

\(x^3=4x\) से (x\(x^2-4\)=0) मिलता है। परीक्षा में प्रतिच्छेद के लिए दोनों फलनों को बराबर करें।

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ग्राफ (y=-3|x-2|+9) का अधिकतम मान और उसका (x)-मान क्या है?

What are the maximum value and its (x)-value for the graph (y=-3|x-2|+9)?

Explanation opens after your attempt
Correct Answer

A. अधिकतम (9) जब (x=2)maximum (9) when (x=2)

Step 1

Concept

The minimum of (|x-2|) is (0) at (x=2), so (y=9) is maximum. In exams, a modulus graph with a negative multiplier has maximum at the vertex.

Step 2

Why this answer is correct

The correct answer is A. अधिकतम (9) जब (x=2) / maximum (9) when (x=2). The minimum of (|x-2|) is (0) at (x=2), so (y=9) is maximum. In exams, a modulus graph with a negative multiplier has maximum at the vertex.

Step 3

Exam Tip

(|x-2|) का न्यूनतम (0) (x=2) पर है इसलिए (y=9) अधिकतम है। परीक्षा में ऋणात्मक गुणक वाले मापांक में शीर्ष अधिकतम होता है।

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फलन (f(x)=\sqrt{(x-1)2}) का ग्राफ किस मानक ग्राफ का विस्थापित रूप है?

The graph of (f(x)=\sqrt{(x-1)2}) is a shifted form of which standard graph?

Explanation opens after your attempt
Correct Answer

A. (y=|x-1|)

Step 1

Concept

(\sqrt{(x-1)2}=|x-1|). In exams, use modulus when square root and square appear together.

Step 2

Why this answer is correct

The correct answer is A. (y=|x-1|). (\sqrt{(x-1)2}=|x-1|). In exams, use modulus when square root and square appear together.

Step 3

Exam Tip

(\sqrt{(x-1)2}=|x-1|) होता है। परीक्षा में वर्गमूल और वर्ग साथ हों तो मापांक का उपयोग करें।

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कौन-सा फलन (y)-अक्ष के प्रति सममित है और उसका न्यूनतम मान (2) है?

Which function is symmetric about the (y)-axis and has minimum value (2)?

Explanation opens after your attempt
Correct Answer

A. \(y=x^2+2\)

Step 1

Concept

\(x^2+2\) is even and its minimum is (2). In exams, check (f(-x)=f(x)) for symmetry.

Step 2

Why this answer is correct

The correct answer is A. \(y=x^2+2\). \(x^2+2\) is even and its minimum is (2). In exams, check (f(-x)=f(x)) for symmetry.

Step 3

Exam Tip

\(x^2+2\) सम फलन है और इसका न्यूनतम (2) है। परीक्षा में सममिति के लिए (f(-x)=f(x)) जांचें।

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ग्राफ \(y=\frac{1}{|x-1|}\) का प्रांत क्या है?

What is the domain of the graph \(y=\frac{1}{|x-1|}\)?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\setminus{1}\)

Step 1

Concept

The denominator (|x-1|) becomes zero at (x=1), so (1) is excluded. In exams, remove values that make the denominator zero.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\setminus{1}\). The denominator (|x-1|) becomes zero at (x=1), so (1) is excluded. In exams, remove values that make the denominator zero.

Step 3

Exam Tip

हर (|x-1|) (x=1) पर शून्य हो जाता है इसलिए (1) हटता है। परीक्षा में हर को शून्य बनाने वाला मान प्रांत से निकालें।

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ग्राफ \(y=x^2\) को (y=(x-6)2+4) में बदलने पर शीर्ष कहाँ जाता है?

Where does the vertex move when \(y=x^2\) is changed to (y=(x-6)2+4)?

Explanation opens after your attempt
Correct Answer

A. ((6,4))

Step 1

Concept

(x-6) shifts the graph (6) units right and (+4) shifts it up. In exams, read (x-a) as a right shift.

Step 2

Why this answer is correct

The correct answer is A. ((6,4)). (x-6) shifts the graph (6) units right and (+4) shifts it up. In exams, read (x-a) as a right shift.

Step 3

Exam Tip

(x-6) दाईं ओर (6) इकाई और (+4) ऊपर खिसकाता है। परीक्षा में (x-a) को दाईं ओर विस्थापन समझें।

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फलन (f(x)=\lfloor x\rfloor+\lfloor -x\rfloor) में (x=1.7) पर ग्राफ का मान क्या है?

For (f(x)=\lfloor x\rfloor+\lfloor -x\rfloor), what is the graph value at (x=1.7)?

Explanation opens after your attempt
Correct Answer

A. ( -1 )

Step 1

Concept

\(\lfloor1.7\rfloor=1\) and \(\lfloor-1.7\rfloor=-2\), so the value is (-1). In exams, avoid mistakes with greatest integers of negative numbers.

Step 2

Why this answer is correct

The correct answer is A. ( -1 ). \(\lfloor1.7\rfloor=1\) and \(\lfloor-1.7\rfloor=-2\), so the value is (-1). In exams, avoid mistakes with greatest integers of negative numbers.

Step 3

Exam Tip

\(\lfloor1.7\rfloor=1\) और \(\lfloor-1.7\rfloor=-2\) इसलिए मान (-1) है। परीक्षा में ऋणात्मक महत्तम पूर्णांक में गलती न करें।

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ग्राफ (y=\operatorname{sgn}(x-1)-\operatorname{sgn}(x-4)) का मान (1<x<4) पर क्या है?

What is the value of the graph (y=\operatorname{sgn}(x-1)-\operatorname{sgn}(x-4)) for (1<x<4)?

Explanation opens after your attempt
Correct Answer

D. ( 2 )

Step 1

Concept

For (1<x<4), (\operatorname{sgn}(x-1)=1) and (\operatorname{sgn}(x-4)=-1). In exams, check the sign of each signum term separately.

Step 2

Why this answer is correct

The correct answer is D. ( 2 ). For (1<x<4), (\operatorname{sgn}(x-1)=1) and (\operatorname{sgn}(x-4)=-1). In exams, check the sign of each signum term separately.

Step 3

Exam Tip

(1<x<4) पर (\operatorname{sgn}(x-1)=1) और (\operatorname{sgn}(x-4)=-1) है। परीक्षा में हर साइनम पद का चिह्न अलग जांचें।

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फलन (f(x)=\frac{1}{x-2-4x+3}) के ग्राफ के लंबवत आसमापी कौन-से हैं?

What are the vertical asymptotes of the graph of (f(x)=\frac{1}{x-2-4x+3})?

Explanation opens after your attempt
Correct Answer

A. (x=1) और (x=3)(x=1) and (x=3)

Step 1

Concept

The denominator (x-2-4x+3=(x-1)(x-3)) is zero at (x=1) and (x=3). In exams, find vertical asymptotes from the zeroes of the denominator.

Step 2

Why this answer is correct

The correct answer is A. (x=1) और (x=3) / (x=1) and (x=3). The denominator (x-2-4x+3=(x-1)(x-3)) is zero at (x=1) and (x=3). In exams, find vertical asymptotes from the zeroes of the denominator.

Step 3

Exam Tip

हर (x-2-4x+3=(x-1)(x-3)) शून्य होने पर (x=1) और (x=3) हैं। परीक्षा में हर के शून्यों से लंबवत आसमापी खोजें।

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ग्राफ (y=|x-1|-|x-4|) का \(x\ge4\) पर कौन-सा स्थिर मान है?

What constant value does the graph (y=|x-1|-|x-4|) have for \(x\ge4\)?

Explanation opens after your attempt
Correct Answer

C. ( 3 )

Step 1

Concept

For \(x\ge4\), (|x-1|=x-1) and (|x-4|=x-4), so (y=3). In exams, open modulus correctly in the given interval.

Step 2

Why this answer is correct

The correct answer is C. ( 3 ). For \(x\ge4\), (|x-1|=x-1) and (|x-4|=x-4), so (y=3). In exams, open modulus correctly in the given interval.

Step 3

Exam Tip

\(x\ge4\) पर (|x-1|=x-1) और (|x-4|=x-4) इसलिए (y=3)। परीक्षा में मापांक को सही अंतराल में खोलें।

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कौन-सा कथन ग्राफ \(y=-\sqrt{x-3}+2\) के लिए सही है?

Which statement is correct for the graph \(y=-\sqrt{x-3}+2\)?

Explanation opens after your attempt
Correct Answer

A. प्रांत \([3,\infty\)) और परिसर (\(-\infty,2]\)domain \([3,\infty\)) and range (\(-\infty,2]\)

Step 1

Concept

From \(x-3\ge0\), the domain is \([3,\infty\)), and the negative sign gives \(y\le2\). In exams, check both the square root and the outside negative sign.

Step 2

Why this answer is correct

The correct answer is A. प्रांत \([3,\infty\)) और परिसर (\(-\infty,2]\) / domain \([3,\infty\)) and range (\(-\infty,2]\). From \(x-3\ge0\), the domain is \([3,\infty\)), and the negative sign gives \(y\le2\). In exams, check both the square root and the outside negative sign.

Step 3

Exam Tip

\(x-3\ge0\) से प्रांत \([3,\infty\)) है और ऋण चिह्न से \(y\le2\)। परीक्षा में वर्गमूल और बाहरी ऋण दोनों का प्रभाव देखें।

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ग्राफ \(y=|x^2-9|\) (x)-अक्ष को किन बिंदुओं पर छूता है?

At which points does the graph \(y=|x^2-9|\) touch the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-3,0)) और ((3,0))((-3,0)) and ((3,0))

Step 1

Concept

\(|x^2-9|=0\) when \(x^2-9=0\), so \(x=\pm3\). In exams, modulus is zero only when the inside expression is zero.

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)) और ((3,0)) / ((-3,0)) and ((3,0)). \(|x^2-9|=0\) when \(x^2-9=0\), so \(x=\pm3\). In exams, modulus is zero only when the inside expression is zero.

Step 3

Exam Tip

\(|x^2-9|=0\) तब \(x^2-9=0\) होता है इसलिए \(x=\pm3\)। परीक्षा में मापांक शून्य तभी होता है जब अंदर की राशि शून्य हो।

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फलन (f(x)=x-2) और (g(x)=2|x|) के ग्राफ किन (x)-मानों पर मिलते हैं?

For which (x)-values do the graphs of (f(x)=x-2) and (g(x)=2|x|) meet?

Explanation opens after your attempt
Correct Answer

A. (x=-2), (x=0), (x=2)

Step 1

Concept

In \(x^2=2|x|\), putting (t=|x|) gives \(t^2=2t\). In exams, use \(x^2=|x|^2\).

Step 2

Why this answer is correct

The correct answer is A. (x=-2), (x=0), (x=2). In \(x^2=2|x|\), putting (t=|x|) gives \(t^2=2t\). In exams, use \(x^2=|x|^2\).

Step 3

Exam Tip

\(x^2=2|x|\) में (t=|x|) रखने पर \(t^2=2t\) मिलता है। परीक्षा में \(x^2=|x|^2\) का उपयोग करें।

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ग्राफ \(y=\frac{3x+2}{x-5}\) का लंबवत और क्षैतिज आसमापी कौन-से हैं?

What are the vertical and horizontal asymptotes of the graph \(y=\frac{3x+2}{x-5}\)?

Explanation opens after your attempt
Correct Answer

A. (x=5) और (y=3)(x=5) and (y=3)

Step 1

Concept

The denominator (x-5=0) gives (x=5), and the ratio of leading coefficients is (3). In exams, find the two asymptotes using different rules.

Step 2

Why this answer is correct

The correct answer is A. (x=5) और (y=3) / (x=5) and (y=3). The denominator (x-5=0) gives (x=5), and the ratio of leading coefficients is (3). In exams, find the two asymptotes using different rules.

Step 3

Exam Tip

हर (x-5=0) से (x=5) और समान घातों के अग्र गुणांकों का अनुपात (3) है। परीक्षा में दोनों आसमापी अलग नियम से निकालें।

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किस अंतराल पर (y=|x+4|) का ग्राफ बढ़ता है?

On which interval is the graph (y=|x+4|) increasing?

Explanation opens after your attempt
Correct Answer

A. \([-4,\infty\))

Step 1

Concept

The modulus graph has vertex at (x=-4), and after that it increases. In exams, remember the right arm of a (V)-graph is increasing.

Step 2

Why this answer is correct

The correct answer is A. \([-4,\infty\)). The modulus graph has vertex at (x=-4), and after that it increases. In exams, remember the right arm of a (V)-graph is increasing.

Step 3

Exam Tip

मापांक ग्राफ का शीर्ष (x=-4) है और उसके बाद ग्राफ बढ़ता है। परीक्षा में (V)-ग्राफ का दायां भाग बढ़ता हुआ याद रखें।

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फलन (f(x)=x-2-4|x|) के ग्राफ का न्यूनतम मान क्या है?

What is the minimum value of the graph of (f(x)=x-2-4|x|)?

Explanation opens after your attempt
Correct Answer

A. ( -4 )

Step 1

Concept

Let \(t=|x|\ge0\), then (f=t-2-4t=(t-2)2-4). In exams, use (|x|) as a new variable to find the minimum.

Step 2

Why this answer is correct

The correct answer is A. ( -4 ). Let \(t=|x|\ge0\), then (f=t-2-4t=(t-2)2-4). In exams, use (|x|) as a new variable to find the minimum.

Step 3

Exam Tip

मान लें \(t=|x|\ge0\) तब (f=t-2-4t=(t-2)2-4) है। परीक्षा में (|x|) को नए चर की तरह लेकर न्यूनतम निकालें।

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ग्राफ \(y=\sqrt{x+1}\) और (y=x-1) के प्रतिच्छेद का (x)-मान क्या है?

What is the (x)-value of the intersection of the graphs \(y=\sqrt{x+1}\) and (y=x-1)?

Explanation opens after your attempt
Correct Answer

C. (x=3)

Step 1

Concept

In \(\sqrt{x+1}=x-1\), \(x\ge1\), and at (x=3) both sides are (2). In exams, the right side must be non-negative before squaring.

Step 2

Why this answer is correct

The correct answer is C. (x=3). In \(\sqrt{x+1}=x-1\), \(x\ge1\), and at (x=3) both sides are (2). In exams, the right side must be non-negative before squaring.

Step 3

Exam Tip

\(\sqrt{x+1}=x-1\) में \(x\ge1\) और (x=3) रखने पर दोनों (2) हैं। परीक्षा में वर्ग करने से पहले दाईं ओर अनऋणात्मक होनी चाहिए।

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फलन (f(x)=\frac{2}{x-2+4}) के ग्राफ का अधिकतम मान क्या है?

What is the maximum value of the graph of (f(x)=\frac{2}{x-2+4})?

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{2}\)

Step 1

Concept

The denominator \(x^2+4\) has minimum (4) at (x=0), so the maximum is \(\frac{2}{4}=\frac{1}{2}\). In exams, a smaller denominator makes the fraction larger.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{2}\). The denominator \(x^2+4\) has minimum (4) at (x=0), so the maximum is \(\frac{2}{4}=\frac{1}{2}\). In exams, a smaller denominator makes the fraction larger.

Step 3

Exam Tip

हर \(x^2+4\) का न्यूनतम (4) (x=0) पर है इसलिए अधिकतम \(\frac{2}{4}=\frac{1}{2}\) है। परीक्षा में हर छोटा होने पर भिन्न बड़ा होता है।

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ग्राफ (y=-|x+3|+5) (x)-अक्ष को किन बिंदुओं पर काटता है?

At which points does the graph (y=-|x+3|+5) cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-8,0)) और ((2,0))((-8,0)) and ((2,0))

Step 1

Concept

From (0=-|x+3|+5), (|x+3|=5), so (x=-8) or (x=2). In exams, add the distance in both directions after modulus.

Step 2

Why this answer is correct

The correct answer is A. ((-8,0)) और ((2,0)) / ((-8,0)) and ((2,0)). From (0=-|x+3|+5), (|x+3|=5), so (x=-8) or (x=2). In exams, add the distance in both directions after modulus.

Step 3

Exam Tip

(0=-|x+3|+5) से (|x+3|=5) इसलिए (x=-8) या (x=2)। परीक्षा में मापांक के बाद दोनों दिशाओं में दूरी जोड़ें।

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यदि (y=|x|) के ग्राफ को (x)-अक्ष में परावर्तित करके (2) इकाई ऊपर खिसकाया जाए तो नया फलन क्या होगा?

If the graph of (y=|x|) is reflected in the (x)-axis and shifted (2) units up, what is the new function?

Explanation opens after your attempt
Correct Answer

B. (y=-|x|+2)

Step 1

Concept

Reflection in the (x)-axis gives (y=-|x|), and shifting (2) up gives (y=-|x|+2). In exams, write reflection and shift separately.

Step 2

Why this answer is correct

The correct answer is B. (y=-|x|+2). Reflection in the (x)-axis gives (y=-|x|), and shifting (2) up gives (y=-|x|+2). In exams, write reflection and shift separately.

Step 3

Exam Tip

(x)-अक्ष में परावर्तन से (y=-|x|) और (2) ऊपर से (y=-|x|+2) मिलता है। परीक्षा में परावर्तन और विस्थापन को अलग लिखें।

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किस फलन का ग्राफ दूसरे और चौथे चतुर्थांश में दो शाखाओं वाला होता है?

Which function has a graph with two branches in the second and fourth quadrants?

Explanation opens after your attempt
Correct Answer

A. \(y=-\frac{1}{x}\)

Step 1

Concept

In \(y=-\frac{1}{x}\), (x) and (y) have opposite signs. In exams, connect the negative reciprocal graph with the second and fourth quadrants.

Step 2

Why this answer is correct

The correct answer is A. \(y=-\frac{1}{x}\). In \(y=-\frac{1}{x}\), (x) and (y) have opposite signs. In exams, connect the negative reciprocal graph with the second and fourth quadrants.

Step 3

Exam Tip

\(y=-\frac{1}{x}\) में (x) और (y) के चिह्न विपरीत होते हैं। परीक्षा में ऋणात्मक पारस्परिक ग्राफ को दूसरे और चौथे चतुर्थांश से जोड़ें।

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ग्राफ (y=|x-2|+|x-8|) किस अंतराल पर स्थिर रहता है?

On which interval is the graph (y=|x-2|+|x-8|) constant?

Explanation opens after your attempt
Correct Answer

A. ([2,8])

Step 1

Concept

Between (2) and (8), the total distance from both points remains constant (6). In exams, interpret the sum of two moduli as distance.

Step 2

Why this answer is correct

The correct answer is A. ([2,8]). Between (2) and (8), the total distance from both points remains constant (6). In exams, interpret the sum of two moduli as distance.

Step 3

Exam Tip

(2) और (8) के बीच दोनों बिंदुओं से कुल दूरी स्थिर (6) रहती है। परीक्षा में दो मापांकों के योग को दूरी की तरह समझें।

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फलन (f(x)=\lfloor x\rfloor) के ग्राफ में (x=-1) पर कौन-सा व्यवहार होता है?

What behavior occurs at (x=-1) in the graph of (f(x)=\lfloor x\rfloor)?

Explanation opens after your attempt
Correct Answer

A. बाएं से मान (-2) के पास और बिंदु पर मान (-1)left value near (-2) and value (-1) at the point

Step 1

Concept

On ([-2,-1)), the value is (-2), but \(\lfloor-1\rfloor=-1\). In exams, watch open and closed points on a step graph.

Step 2

Why this answer is correct

The correct answer is A. बाएं से मान (-2) के पास और बिंदु पर मान (-1) / left value near (-2) and value (-1) at the point. On ([-2,-1)), the value is (-2), but \(\lfloor-1\rfloor=-1\). In exams, watch open and closed points on a step graph.

Step 3

Exam Tip

([-2,-1)) पर मान (-2) है लेकिन \(\lfloor-1\rfloor=-1\)। परीक्षा में सीढ़ीनुमा ग्राफ के खुले और बंद बिंदु देखें।

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ग्राफ \(y=\sqrt{|x-2|}\) किस रेखा के प्रति सममित है?

About which line is the graph \(y=\sqrt{|x-2|}\) symmetric?

Explanation opens after your attempt
Correct Answer

A. (x=2)

Step 1

Concept

In (|x-2|), points equally distant from (x=2) give the same (y). In exams, the symmetry line of a (|x-a|) graph is (x=a).

Step 2

Why this answer is correct

The correct answer is A. (x=2). In (|x-2|), points equally distant from (x=2) give the same (y). In exams, the symmetry line of a (|x-a|) graph is (x=a).

Step 3

Exam Tip

(|x-2|) में (x=2) से समान दूरी वाले मान समान (y) देते हैं। परीक्षा में (|x-a|) वाले ग्राफ की सममिति रेखा (x=a) होती है।

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फलन (f(x)=|x+2|+1) और (g(x)=6) के ग्राफों के प्रतिच्छेदों के (x)-मान क्या हैं?

What are the (x)-values of intersections of the graphs (f(x)=|x+2|+1) and (g(x)=6)?

Explanation opens after your attempt
Correct Answer

A. (x=-7) और (x=3)(x=-7) and (x=3)

Step 1

Concept

From (|x+2|+1=6), (|x+2|=5), so (x=-7) or (x=3). In exams, set the (y)-values equal for intersection with a horizontal line.

Step 2

Why this answer is correct

The correct answer is A. (x=-7) और (x=3) / (x=-7) and (x=3). From (|x+2|+1=6), (|x+2|=5), so (x=-7) or (x=3). In exams, set the (y)-values equal for intersection with a horizontal line.

Step 3

Exam Tip

(|x+2|+1=6) से (|x+2|=5) इसलिए (x=-7) या (x=3)। परीक्षा में क्षैतिज रेखा से प्रतिच्छेद के लिए (y)-मान बराबर करें।

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कौन-सा विकल्प ग्राफ (y=|x+3|+|x-1|) के परिसर को सही बताता है?

Which option correctly gives the range of the graph (y=|x+3|+|x-1|)?

Explanation opens after your attempt
Correct Answer

A. \([4,\infty\))

Step 1

Concept

Between (-3) and (1), the total distance has minimum (4), and it increases outside. In exams, use the distance idea for sums of moduli.

Step 2

Why this answer is correct

The correct answer is A. \([4,\infty\)). Between (-3) and (1), the total distance has minimum (4), and it increases outside. In exams, use the distance idea for sums of moduli.

Step 3

Exam Tip

(-3) और (1) के बीच कुल दूरी न्यूनतम (4) है और बाहर बढ़ती है। परीक्षा में दूरी वाले मापांक योग से न्यूनतम दूरी निकालें।

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FAQs

Class 11 Mathematics Quiz FAQs

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