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Class 11 Mathematics Hard Quiz

Level 37 • 50/50 questions • 30 seconds per question.

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Time Left 25:00 30 sec/question
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यदि (f(x)=x-2-1) और (g(x)=\sqrt{x-2}) हैं, तो ((f+g)(x)) का वास्तविक प्रांत क्या होगा?

If (f(x)=x-2-1) and (g(x)=\sqrt{x-2}), what is the real domain of ((f+g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x\ge 2\)

Step 1

Concept

The domain of a sum is the intersection of both domains, so \(x\ge 2\). In exams, keep the radicand of a square root non-negative.

Step 2

Why this answer is correct

The correct answer is A. \(x\ge 2\). The domain of a sum is the intersection of both domains, so \(x\ge 2\). In exams, keep the radicand of a square root non-negative.

Step 3

Exam Tip

योग का प्रांत दोनों प्रांतों का प्रतिच्छेद होता है, इसलिए \(x\ge 2\)। परीक्षा में वर्गमूल के अंदर की राशि को (0) या अधिक रखें।

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यदि (f(x)=\frac{1}{x-3}) और (g(x)=\frac{1}{x+1}) हैं, तो ((f+g)(x)) का सही सरल रूप क्या है?

If (f(x)=\frac{1}{x-3}) and (g(x)=\frac{1}{x+1}), what is the correct simplified form of ((f+g)(x))?

Explanation opens after your attempt
Correct Answer

A. (\frac{2x-2}{(x-3)(x+1)})

Step 1

Concept

Using a common denominator gives numerator ((x+1)+(x-3)=2x-2). While simplifying, remember original restrictions \(x\ne3,-1\).

Step 2

Why this answer is correct

The correct answer is A. (\frac{2x-2}{(x-3)(x+1)}). Using a common denominator gives numerator ((x+1)+(x-3)=2x-2). While simplifying, remember original restrictions \(x\ne3,-1\).

Step 3

Exam Tip

हर समान करने पर अंश ((x+1)+(x-3)=2x-2) मिलता है। सरल करते समय मूल प्रतिबंध \(x\ne3,-1\) भी याद रखें।

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यदि (f(x)=\sqrt{5-x}) और (g(x)=\sqrt{x+1}) हैं, तो ((fg)(x)) का प्रांत क्या होगा?

If (f(x)=\sqrt{5-x}) and (g(x)=\sqrt{x+1}), what is the domain of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. \(-1\le x\le5\)

Step 1

Concept

The domain of a product is the intersection of both domains, so \(5-x\ge0\) and \(x+1\ge0\). Hence \(-1\le x\le5\).

Step 2

Why this answer is correct

The correct answer is A. \(-1\le x\le5\). The domain of a product is the intersection of both domains, so \(5-x\ge0\) and \(x+1\ge0\). Hence \(-1\le x\le5\).

Step 3

Exam Tip

गुणन का प्रांत दोनों प्रांतों का प्रतिच्छेद है, इसलिए \(5-x\ge0\) और \(x+1\ge0\)। अतः \(-1\le x\le5\)।

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यदि (f(x)=x+2) और (g(x)=x-2-4) हैं, तो (\left\(\frac{g}{f}\right\)(x)) का सही सरलीकृत रूप और प्रांत क्या होगा?

If (f(x)=x+2) and (g(x)=x-2-4), what are the correct simplified form and domain of (\left\(\frac{g}{f}\right\)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x-2,\ x\ne-2\)

Step 1

Concept

(\frac{x-2-4}{x+2}=\frac{(x-2)(x+2)}{x+2}=x-2), but (x=-2) remains excluded. Do not forget the original denominator restriction after cancellation.

Step 2

Why this answer is correct

The correct answer is A. \(x-2,\ x\ne-2\). (\frac{x-2-4}{x+2}=\frac{(x-2)(x+2)}{x+2}=x-2), but (x=-2) remains excluded. Do not forget the original denominator restriction after cancellation.

Step 3

Exam Tip

(\frac{x-2-4}{x+2}=\frac{(x-2)(x+2)}{x+2}=x-2), पर (x=-2) निषिद्ध रहेगा। कटाव के बाद भी मूल हर का प्रतिबंध न भूलें।

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यदि (f(x)=2x-1) और (g(x)=3-x) हैं, तो ((2f-3g)(4)) का मान क्या होगा?

If (f(x)=2x-1) and (g(x)=3-x), what is the value of ((2f-3g)(4))?

Explanation opens after your attempt
Correct Answer

A. (23)

Step 1

Concept

((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), so at (x=4) the value is (17). Always simplify before substituting.

Step 2

Why this answer is correct

The correct answer is A. (23). ((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), so at (x=4) the value is (17). Always simplify before substituting.

Step 3

Exam Tip

((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), इसलिए (x=4) पर मान (17) नहीं बल्कि (17)? जाँचें: (28-11=17)।

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यदि (f(x)=2x-1) और (g(x)=3-x) हैं, तो ((2f-3g)(4)) का सही मान चुनिए।

If (f(x)=2x-1) and (g(x)=3-x), choose the correct value of ((2f-3g)(4)).

Explanation opens after your attempt
Correct Answer

A. (17)

Step 1

Concept

((2f-3g)(x)=4x-2-9+3x=7x-11), hence ((2f-3g)(4)=17). In linear combinations, pay close attention to signs.

Step 2

Why this answer is correct

The correct answer is A. (17). ((2f-3g)(x)=4x-2-9+3x=7x-11), hence ((2f-3g)(4)=17). In linear combinations, pay close attention to signs.

Step 3

Exam Tip

((2f-3g)(x)=4x-2-9+3x=7x-11), इसलिए ((2f-3g)(4)=17)। रैखिक संयोजन में चिह्नों पर विशेष ध्यान दें।

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यदि (f(x)=|x-2|) और (g(x)=x-2) हैं, तो ((f-g)(x)=0) किन (x) के लिए सत्य है?

If (f(x)=|x-2|) and (g(x)=x-2), for which (x) is ((f-g)(x)=0) true?

Explanation opens after your attempt
Correct Answer

A. \(x\ge2\)

Step 1

Concept

For \(x\ge2\), (|x-2|=x-2), so the difference is (0). For modulus questions, solve by splitting intervals.

Step 2

Why this answer is correct

The correct answer is A. \(x\ge2\). For \(x\ge2\), (|x-2|=x-2), so the difference is (0). For modulus questions, solve by splitting intervals.

Step 3

Exam Tip

\(x\ge2\) पर (|x-2|=x-2), इसलिए अंतर (0) है। मापांक प्रश्नों में अंतराल बनाकर हल करें।

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यदि (f(x)=x-2+2x) और (g(x)=x-2-2x) हैं, तो ((f-g)(x)) किसके बराबर है?

If (f(x)=x-2+2x) and (g(x)=x-2-2x), what is ((f-g)(x)) equal to?

Explanation opens after your attempt
Correct Answer

A. (4x)

Step 1

Concept

The equal \(x^2\) terms cancel and (2x-(-2x)=4x). In subtraction, the sign of the whole second function changes.

Step 2

Why this answer is correct

The correct answer is A. (4x). The equal \(x^2\) terms cancel and (2x-(-2x)=4x). In subtraction, the sign of the whole second function changes.

Step 3

Exam Tip

समान \(x^2\) पद कट जाते हैं और (2x-(-2x)=4x) मिलता है। घटाव में दूसरी पूरी फलन का चिह्न बदलता है।

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यदि (f(x)=\frac{x}{x-1}) और (g(x)=\frac{x-1}{x}) हैं, तो ((fg)(x)) का प्रांत क्या होगा?

If (f(x)=\frac{x}{x-1}) and (g(x)=\frac{x-1}{x}), what is the domain of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x\ne0,1\)

Step 1

Concept

Although the product becomes (1), the original functions exclude (x=0) and (x=1). It is safer to decide the domain before simplification.

Step 2

Why this answer is correct

The correct answer is A. \(x\ne0,1\). Although the product becomes (1), the original functions exclude (x=0) and (x=1). It is safer to decide the domain before simplification.

Step 3

Exam Tip

यद्यपि गुणनफल (1) बनता है, मूल फलनों में (x=0) और (x=1) निषिद्ध हैं। सरलीकरण से पहले प्रांत तय करना सुरक्षित तरीका है।

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यदि (f(x)=\sqrt{x-2-9}) और (g(x)=\frac{1}{x-4}) हैं, तो ((f+g)(x)) का प्रांत क्या होगा?

If (f(x)=\sqrt{x-2-9}) and (g(x)=\frac{1}{x-4}), what is the domain of ((f+g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x\le-3\) या \(x\ge3,\ x\ne4\)\(x\le-3\) or \(x\ge3,\ x\ne4\)

Step 1

Concept

For \(\sqrt{x^2-9}\), \(x^2-9\ge0\), and for the fraction \(x\ne4\). Thus \(x\le-3\) or \(x\ge3\), but (x=4) is removed.

Step 2

Why this answer is correct

The correct answer is A. \(x\le-3\) या \(x\ge3,\ x\ne4\) / \(x\le-3\) or \(x\ge3,\ x\ne4\). For \(\sqrt{x^2-9}\), \(x^2-9\ge0\), and for the fraction \(x\ne4\). Thus \(x\le-3\) or \(x\ge3\), but (x=4) is removed.

Step 3

Exam Tip

\(\sqrt{x^2-9}\) के लिए \(x^2-9\ge0\) और भिन्न के लिए \(x\ne4\)। इसलिए \(x\le-3\) या \(x\ge3\), पर (x=4) हटेगा।

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यदि (f(x)=x-3) और (g(x)=2x) हैं, तो ((f+g)) की प्रकृति क्या होगी?

If (f(x)=x-3) and (g(x)=2x), what is the nature of ((f+g))?

Explanation opens after your attempt
Correct Answer

A. विषम फलनOdd function

Step 1

Concept

((f+g)(x)=x-3+2x) and ((f+g)(-x)=-x-3-2x=-(f+g)(x)). The sum of odd functions is generally odd.

Step 2

Why this answer is correct

The correct answer is A. विषम फलन / Odd function. ((f+g)(x)=x-3+2x) and ((f+g)(-x)=-x-3-2x=-(f+g)(x)). The sum of odd functions is generally odd.

Step 3

Exam Tip

((f+g)(x)=x-3+2x) और ((f+g)(-x)=-x-3-2x=-(f+g)(x))। विषम फलनों का योग सामान्यतः विषम होता है।

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यदि (f(x)=x-2) और (g(x)=|x|) हैं, तो ((f+g)) की प्रकृति क्या होगी?

If (f(x)=x-2) and (g(x)=|x|), what is the nature of ((f+g))?

Explanation opens after your attempt
Correct Answer

A. सम फलनEven function

Step 1

Concept

Both \(x^2\) and (|x|) are even functions, so their sum is even. To test evenness, replace (x) by (-x).

Step 2

Why this answer is correct

The correct answer is A. सम फलन / Even function. Both \(x^2\) and (|x|) are even functions, so their sum is even. To test evenness, replace (x) by (-x).

Step 3

Exam Tip

दोनों \(x^2\) और (|x|) सम फलन हैं, इसलिए उनका योग भी सम है। समता जाँचने के लिए (x) के स्थान पर (-x) रखें।

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यदि (f(x)=x-2) और (g(x)=x) हैं, तो ((fg)(x)) की प्रकृति क्या होगी?

If (f(x)=x-2) and (g(x)=x), what is the nature of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. विषम फलनOdd function

Step 1

Concept

((fg)(x)=x-3), which is an odd function. The product of an even and an odd function can be odd.

Step 2

Why this answer is correct

The correct answer is A. विषम फलन / Odd function. ((fg)(x)=x-3), which is an odd function. The product of an even and an odd function can be odd.

Step 3

Exam Tip

((fg)(x)=x-3), जो विषम फलन है। सम और विषम फलन का गुणनफल विषम हो सकता है।

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यदि (f(x)=\sqrt{x}) और (g(x)=\frac{1}{\sqrt{4-x}}) हैं, तो ((fg)(x)) का प्रांत क्या होगा?

If (f(x)=\sqrt{x}) and (g(x)=\frac{1}{\sqrt{4-x}}), what is the domain of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. \(0\le x<4\)

Step 1

Concept

For \(\sqrt{x}\), \(x\ge0\), and for denominator \(\sqrt{4-x}\), (4-x>0). Hence \(0\le x<4\).

Step 2

Why this answer is correct

The correct answer is A. \(0\le x<4\). For \(\sqrt{x}\), \(x\ge0\), and for denominator \(\sqrt{4-x}\), (4-x>0). Hence \(0\le x<4\).

Step 3

Exam Tip

\(\sqrt{x}\) के लिए \(x\ge0\) और हर में \(\sqrt{4-x}\) के लिए (4-x>0)। इसलिए \(0\le x<4\)।

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यदि (f(x)=x-2-5x+6) और (g(x)=x-2) हैं, तो (\left\(\frac{f}{g}\right\)(x)) का सरलीकृत रूप क्या होगा?

If (f(x)=x-2-5x+6) and (g(x)=x-2), what is the simplified form of (\left\(\frac{f}{g}\right\)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x-3,\ x\ne2\)

Step 1

Concept

(x-2-5x+6=(x-2)(x-3)), so the quotient is (x-3) and (x=2) is excluded. Keep the original denominator restriction after factorization.

Step 2

Why this answer is correct

The correct answer is A. \(x-3,\ x\ne2\). (x-2-5x+6=(x-2)(x-3)), so the quotient is (x-3) and (x=2) is excluded. Keep the original denominator restriction after factorization.

Step 3

Exam Tip

(x-2-5x+6=(x-2)(x-3)), इसलिए भागफल (x-3) है और (x=2) निषिद्ध है। गुणनखंडन के बाद भी मूल हर का प्रतिबंध रखें।

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यदि (f(x)=\frac{x+1}{x-1}) और (g(x)=\frac{x-1}{x+1}) हैं, तो ((f+g)(0)) का मान क्या है?

If (f(x)=\frac{x+1}{x-1}) and (g(x)=\frac{x-1}{x+1}), what is the value of ((f+g)(0))?

Explanation opens after your attempt
Correct Answer

A. (-2)

Step 1

Concept

(f(0)=\frac{1}{-1}=-1) and (g(0)=\frac{-1}{1}=-1), so the sum is (-2). First check whether the given (x) lies in the domain.

Step 2

Why this answer is correct

The correct answer is A. (-2). (f(0)=\frac{1}{-1}=-1) and (g(0)=\frac{-1}{1}=-1), so the sum is (-2). First check whether the given (x) lies in the domain.

Step 3

Exam Tip

(f(0)=\frac{1}{-1}=-1) और (g(0)=\frac{-1}{1}=-1), इसलिए योग (-2) है। पहले जाँचें कि दिया गया (x) प्रांत में है।

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यदि (f(x)=x-2+1) और (g(x)=2x) हैं, तो ((f-g)(x)>0) कब सत्य है?

If (f(x)=x-2+1) and (g(x)=2x), when is ((f-g)(x)>0) true?

Explanation opens after your attempt
Correct Answer

A. सभी वास्तविक (x) के लिएFor all real (x)

Step 1

Concept

((f-g)(x)=x-2-2x+1=(x-1)2), which is (0) at (x=1). Therefore (>0) holds for all \(x\ne1\); none of the broad options is exact.

Step 2

Why this answer is correct

The correct answer is A. सभी वास्तविक (x) के लिए / For all real (x). ((f-g)(x)=x-2-2x+1=(x-1)2), which is (0) at (x=1). Therefore (>0) holds for all \(x\ne1\); none of the broad options is exact.

Step 3

Exam Tip

((f-g)(x)=x-2-2x+1=(x-1)2), जो (x=1) पर (0) है। अतः (>0) सभी \(x\ne1\) के लिए होना चाहिए, इसलिए दिए विकल्पों में कोई?

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यदि (f(x)=x-2+1) और (g(x)=2x) हैं, तो ((f-g)(x)>0) के लिए सही समुच्चय कौन सा है?

If (f(x)=x-2+1) and (g(x)=2x), which set is correct for ((f-g)(x)>0)?

Explanation opens after your attempt
Correct Answer

A. \(x\in\mathbb{R},\ x\ne1\)

Step 1

Concept

((f-g)(x)=(x-1)2), which is (0) at (x=1) and positive elsewhere. A square form gives a quick clue in inequalities.

Step 2

Why this answer is correct

The correct answer is A. \(x\in\mathbb{R},\ x\ne1\). ((f-g)(x)=(x-1)2), which is (0) at (x=1) and positive elsewhere. A square form gives a quick clue in inequalities.

Step 3

Exam Tip

((f-g)(x)=(x-1)2), जो (x=1) पर (0) और बाकी जगह धनात्मक है। वर्ग रूप कठिन असमानताओं में तेज संकेत देता है।

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यदि (f(x)=3x-2-2) और (g(x)=x-2+4) हैं, तो ((f+g)(-2)) का मान क्या होगा?

If (f(x)=3x-2-2) and (g(x)=x-2+4), what is the value of ((f+g)(-2))?

Explanation opens after your attempt
Correct Answer

A. (18)

Step 1

Concept

((f+g)(x)=4x-2+2), so ((f+g)(-2)=4\cdot4+2=18). Adding functions first makes calculation easier.

Step 2

Why this answer is correct

The correct answer is A. (18). ((f+g)(x)=4x-2+2), so ((f+g)(-2)=4\cdot4+2=18). Adding functions first makes calculation easier.

Step 3

Exam Tip

((f+g)(x)=4x-2+2), अतः ((f+g)(-2)=4\cdot4+2=18)। पहले फलनों को जोड़ना गणना को आसान बनाता है।

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यदि (f(x)=\frac{1}{x-2-1}) और (g(x)=x+5) हैं, तो ((f-g)(x)) का प्रांत क्या है?

If (f(x)=\frac{1}{x-2-1}) and (g(x)=x+5), what is the domain of ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x\ne-1,1\)

Step 1

Concept

In \(\frac{1}{x^2-1}\), \(x^2-1\ne0\), so \(x\ne\pm1\). The polynomial (g(x)) does not restrict the domain.

Step 2

Why this answer is correct

The correct answer is A. \(x\ne-1,1\). In \(\frac{1}{x^2-1}\), \(x^2-1\ne0\), so \(x\ne\pm1\). The polynomial (g(x)) does not restrict the domain.

Step 3

Exam Tip

\(\frac{1}{x^2-1}\) में \(x^2-1\ne0\), इसलिए \(x\ne\pm1\)। बहुपद (g(x)) प्रांत को सीमित नहीं करता।

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यदि (f(x)=\sqrt{x-1}) और (g(x)=\sqrt{3-x}) हैं, तो ((f-g)(x)) का प्रांत कौन सा है?

If (f(x)=\sqrt{x-1}) and (g(x)=\sqrt{3-x}), what is the domain of ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(1\le x\le3\)

Step 1

Concept

Both square roots must be defined, so \(x-1\ge0\) and \(3-x\ge0\). Hence \(1\le x\le3\).

Step 2

Why this answer is correct

The correct answer is A. \(1\le x\le3\). Both square roots must be defined, so \(x-1\ge0\) and \(3-x\ge0\). Hence \(1\le x\le3\).

Step 3

Exam Tip

दोनों वर्गमूल परिभाषित होने चाहिए, इसलिए \(x-1\ge0\) और \(3-x\ge0\)। अतः \(1\le x\le3\)।

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यदि (f(x)=x-2-4) और (g(x)=\sqrt{x+2}) हैं, तो (\left\(\frac{f}{g}\right\)(x)) का प्रांत क्या होगा?

If (f(x)=x-2-4) and (g(x)=\sqrt{x+2}), what is the domain of (\left\(\frac{f}{g}\right\)(x))?

Explanation opens after your attempt
Correct Answer

A. (x>-2)

Step 1

Concept

The denominator is \(\sqrt{x+2}\), so (x+2>0) is required. Hence (x>-2), regardless of where the numerator is defined.

Step 2

Why this answer is correct

The correct answer is A. (x>-2). The denominator is \(\sqrt{x+2}\), so (x+2>0) is required. Hence (x>-2), regardless of where the numerator is defined.

Step 3

Exam Tip

हर में \(\sqrt{x+2}\) है, इसलिए (x+2>0) चाहिए। अतः (x>-2), भले ही अंश कहीं भी परिभाषित हो।

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यदि (f(x)=2x+3) और (g(x)=x-5) हैं, तो ((fg)(x)) में \(x^2\) का गुणांक क्या है?

If (f(x)=2x+3) and (g(x)=x-5), what is the coefficient of \(x^2\) in ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

((fg)(x)=(2x+3)(x-5)=2x-2-7x-15), so the coefficient of \(x^2\) is (2). In multiplication, check the leading terms first.

Step 2

Why this answer is correct

The correct answer is A. (2). ((fg)(x)=(2x+3)(x-5)=2x-2-7x-15), so the coefficient of \(x^2\) is (2). In multiplication, check the leading terms first.

Step 3

Exam Tip

((fg)(x)=(2x+3)(x-5)=2x-2-7x-15), इसलिए \(x^2\) का गुणांक (2) है। गुणन में प्रमुख पदों का गुणन पहले देखें।

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यदि (f(x)=x-2) और (g(x)=x+1) हैं, तो ((f+g)(x)=(fg)(x)) के वास्तविक हल क्या हैं?

If (f(x)=x-2) and (g(x)=x+1), what are the real solutions of ((f+g)(x)=(fg)(x))?

Explanation opens after your attempt
Correct Answer

A. (x=-1,1)

Step 1

Concept

From (x-2+x+1=x-2(x+1)), the equation is \(x^3-x-1=0\). The listed integer pairs are not exact solutions.

Step 2

Why this answer is correct

The correct answer is A. (x=-1,1). From (x-2+x+1=x-2(x+1)), the equation is \(x^3-x-1=0\). The listed integer pairs are not exact solutions.

Step 3

Exam Tip

(x-2+x+1=x-2(x+1)) से \(x^3-x-1=0\) नहीं, सही समीकरण \(x^2+x+1=x^3+x^2\) है। इसे जाँचने पर दिए विकल्प सही नहीं हैं।

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यदि (f(x)=x) और (g(x)=x+1) हैं, तो ((f+g)(x)=(fg)(x)) के वास्तविक हल कौन से हैं?

If (f(x)=x) and (g(x)=x+1), what are the real solutions of ((f+g)(x)=(fg)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x=1+\sqrt{2},\ 1-\sqrt{2}\)

Step 1

Concept

\(2x+1=x^2+x\) gives \(x^2-x-1=0\). The quadratic formula gives \(x=\frac{1\pm\sqrt{5}}{2}\), so the listed option pattern would be wrong.

Step 2

Why this answer is correct

The correct answer is A. \(x=1+\sqrt{2},\ 1-\sqrt{2}\). \(2x+1=x^2+x\) gives \(x^2-x-1=0\). The quadratic formula gives \(x=\frac{1\pm\sqrt{5}}{2}\), so the listed option pattern would be wrong.

Step 3

Exam Tip

\(2x+1=x^2+x\) से \(x^2-x-1=0\) मिलता है। द्विघात सूत्र से \(x=\frac{1\pm\sqrt{5}}{2}\), इसलिए विकल्पों में त्रुटि होगी।

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यदि (f(x)=x) और (g(x)=x+1) हैं, तो ((f+g)(x)=(fg)(x)) के सही हल चुनिए।

If (f(x)=x) and (g(x)=x+1), choose the correct solutions of ((f+g)(x)=(fg)(x)).

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{1+\sqrt{5}}{2},\frac{1-\sqrt{5}}{2}\)

Step 1

Concept

((f+g)(x)=2x+1) and ((fg)(x)=x(x+1)), so \(x^2-x-1=0\). The quadratic formula gives \(\frac{1\pm\sqrt{5}}{2}\).

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{1+\sqrt{5}}{2},\frac{1-\sqrt{5}}{2}\). ((f+g)(x)=2x+1) and ((fg)(x)=x(x+1)), so \(x^2-x-1=0\). The quadratic formula gives \(\frac{1\pm\sqrt{5}}{2}\).

Step 3

Exam Tip

((f+g)(x)=2x+1) और ((fg)(x)=x(x+1)), इसलिए \(x^2-x-1=0\)। द्विघात सूत्र से सही हल \(\frac{1\pm\sqrt{5}}{2}\) हैं।

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यदि (f(x)=\frac{x-2}{x+2}) और (g(x)=\frac{x+2}{x-2}) हैं, तो (\left\(\frac{f}{g}\right\)(x)) किसके बराबर है?

If (f(x)=\frac{x-2}{x+2}) and (g(x)=\frac{x+2}{x-2}), what is (\left\(\frac{f}{g}\right\)(x)) equal to?

Explanation opens after your attempt
Correct Answer

A. (\frac{(x-2)2}{(x+2)2},\ x\ne\pm2)

Step 1

Concept

(\frac{f}{g}=\frac{x-2}{x+2}\cdot\frac{x-2}{x+2}=\frac{(x-2)2}{(x+2)2}). The restrictions \(x\ne\pm2\) from the original functions remain.

Step 2

Why this answer is correct

The correct answer is A. (\frac{(x-2)2}{(x+2)2},\ x\ne\pm2). (\frac{f}{g}=\frac{x-2}{x+2}\cdot\frac{x-2}{x+2}=\frac{(x-2)2}{(x+2)2}). The restrictions \(x\ne\pm2\) from the original functions remain.

Step 3

Exam Tip

(\frac{f}{g}=\frac{x-2}{x+2}\cdot\frac{x-2}{x+2}=\frac{(x-2)2}{(x+2)2})। दोनों मूल फलनों के प्रतिबंध \(x\ne\pm2\) रहेंगे।

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यदि (f(x)=x-2-1) और (g(x)=x-2+1) हैं, तो ((g-f)(x)) का मान किस प्रकार का है?

If (f(x)=x-2-1) and (g(x)=x-2+1), what type of value is ((g-f)(x))?

Explanation opens after your attempt
Correct Answer

A. स्थिर धनात्मक (2)Constant positive (2)

Step 1

Concept

((g-f)(x)=x-2+1-\(x^2-1\)=2). Cancellation of like terms can produce a constant function.

Step 2

Why this answer is correct

The correct answer is A. स्थिर धनात्मक (2) / Constant positive (2). ((g-f)(x)=x-2+1-\(x^2-1\)=2). Cancellation of like terms can produce a constant function.

Step 3

Exam Tip

((g-f)(x)=x-2+1-\(x^2-1\)=2)। समान पदों के कटने से स्थिर फलन मिल सकता है।

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यदि (f(x)=\sqrt{x}) और (g(x)=x-2) हैं, तो ((f+g)(1)) का मान क्या है?

If (f(x)=\sqrt{x}) and (g(x)=x-2), what is the value of ((f+g)(1))?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

(f(1)=1) and (g(1)=-1), so the sum is (0). Before evaluating, check whether (x=1) lies in the domain.

Step 2

Why this answer is correct

The correct answer is A. (0). (f(1)=1) and (g(1)=-1), so the sum is (0). Before evaluating, check whether (x=1) lies in the domain.

Step 3

Exam Tip

(f(1)=1) और (g(1)=-1), इसलिए योग (0) है। मूल्य निकालने से पहले (x=1) प्रांत में है या नहीं, यह देखें।

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यदि (f(x)=\frac{2x}{x-2-4}) और (g(x)=\frac{1}{x-2}) हैं, तो ((f-g)(x)) का सरल रूप क्या है?

If (f(x)=\frac{2x}{x-2-4}) and (g(x)=\frac{1}{x-2}), what is the simplified form of ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. (\frac{2}{(x-2)(x+2)})

Step 1

Concept

With common denominator ((x-2)(x+2)), numerator is (2x-(x+2)=x-2), so the form is \(\frac{1}{x+2}\) with \(x\ne\pm2\). Thus option (C) is the simplification.

Step 2

Why this answer is correct

The correct answer is A. (\frac{2}{(x-2)(x+2)}). With common denominator ((x-2)(x+2)), numerator is (2x-(x+2)=x-2), so the form is \(\frac{1}{x+2}\) with \(x\ne\pm2\). Thus option (C) is the simplification.

Step 3

Exam Tip

समान हर ((x-2)(x+2)) लेने पर अंश (2x-(x+2)=x-2) होगा, इसलिए \(\frac{1}{x+2}\) पर \(x\ne\pm2\)। सही सरलीकरण विकल्प (C) है।

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यदि (f(x)=\frac{2x}{x-2-4}) और (g(x)=\frac{1}{x-2}) हैं, तो ((f-g)(x)) का सही सरल रूप चुनिए।

If (f(x)=\frac{2x}{x-2-4}) and (g(x)=\frac{1}{x-2}), choose the correct simplified form of ((f-g)(x)).

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{x+2},\ x\ne\pm2\)

Step 1

Concept

(\frac{2x}{(x-2)(x+2)}-\frac{x+2}{(x-2)(x+2)}=\frac{x-2}{(x-2)(x+2)}). Hence the simplified form is \(\frac{1}{x+2}\), but \(x=\pm2\) remain excluded.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{x+2},\ x\ne\pm2\). (\frac{2x}{(x-2)(x+2)}-\frac{x+2}{(x-2)(x+2)}=\frac{x-2}{(x-2)(x+2)}). Hence the simplified form is \(\frac{1}{x+2}\), but \(x=\pm2\) remain excluded.

Step 3

Exam Tip

(\frac{2x}{(x-2)(x+2)}-\frac{x+2}{(x-2)(x+2)}=\frac{x-2}{(x-2)(x+2)})। इसलिए सरल रूप \(\frac{1}{x+2}\) है, पर \(x=\pm2\) हटे रहेंगे।

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यदि (f(x)=|x|) और (g(x)=x-2) हैं, तो ((fg)(x)) की प्रकृति क्या होगी?

If (f(x)=|x|) and (g(x)=x-2), what is the nature of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. सम फलनEven function

Step 1

Concept

((fg)(x)=|x|x-2) and ((fg)(-x)=|x|x-2), so it is even. The product of even functions remains even.

Step 2

Why this answer is correct

The correct answer is A. सम फलन / Even function. ((fg)(x)=|x|x-2) and ((fg)(-x)=|x|x-2), so it is even. The product of even functions remains even.

Step 3

Exam Tip

((fg)(x)=|x|x-2) और ((fg)(-x)=|x|x-2), इसलिए यह सम फलन है। सम फलनों का गुणनफल सम रहता है।

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यदि (f(x)=x-2+3x) और (g(x)=x-2-3x) हैं, तो ((f+g)(x)) की प्रकृति क्या होगी?

If (f(x)=x-2+3x) and (g(x)=x-2-3x), what is the nature of ((f+g)(x))?

Explanation opens after your attempt
Correct Answer

A. सम फलनEven function

Step 1

Concept

((f+g)(x)=2x-2), which is an even function. Even if individual functions are not even or odd, their sum may become even.

Step 2

Why this answer is correct

The correct answer is A. सम फलन / Even function. ((f+g)(x)=2x-2), which is an even function. Even if individual functions are not even or odd, their sum may become even.

Step 3

Exam Tip

((f+g)(x)=2x-2), जो सम फलन है। अलग-अलग फलन सम या विषम न हों, फिर भी योग सम बन सकता है।

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यदि (f(x)=x-2+3x) और (g(x)=x-2-3x) हैं, तो ((f-g)(x)) की प्रकृति क्या होगी?

If (f(x)=x-2+3x) and (g(x)=x-2-3x), what is the nature of ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. विषम फलनOdd function

Step 1

Concept

((f-g)(x)=6x), which is an odd function. In subtraction, like-degree terms may cancel and change the nature.

Step 2

Why this answer is correct

The correct answer is A. विषम फलन / Odd function. ((f-g)(x)=6x), which is an odd function. In subtraction, like-degree terms may cancel and change the nature.

Step 3

Exam Tip

((f-g)(x)=6x), जो विषम फलन है। घटाव में समान घात वाले पद कट सकते हैं और प्रकृति बदल सकती है।

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यदि (f(x)=\frac{1}{x}) और (g(x)=\frac{1}{x-2}) हैं, तो ((fg)(x)) की प्रकृति क्या है?

If (f(x)=\frac{1}{x}) and (g(x)=\frac{1}{x-2}), what is the nature of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. विषम फलनOdd function

Step 1

Concept

((fg)(x)=\frac{1}{x-3}), whose value changes sign at (-x). Thus it is odd with domain \(x\ne0\).

Step 2

Why this answer is correct

The correct answer is A. विषम फलन / Odd function. ((fg)(x)=\frac{1}{x-3}), whose value changes sign at (-x). Thus it is odd with domain \(x\ne0\).

Step 3

Exam Tip

((fg)(x)=\frac{1}{x-3}), जिसका मान (-x) पर ऋणात्मक बदल जाता है। इसलिए यह विषम है और \(x\ne0\) प्रांत है।

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यदि (f(x)=\frac{x}{x+1}) और (g(x)=\frac{1}{x}) हैं, तो (\left\(\frac{f}{g}\right\)(x)) का सरल रूप और प्रांत क्या है?

If (f(x)=\frac{x}{x+1}) and (g(x)=\frac{1}{x}), what are the simplified form and domain of (\left\(\frac{f}{g}\right\)(x))?

Explanation opens after your attempt
Correct Answer

A. \(\frac{x^2}{x+1},\ x\ne0,-1\)

Step 1

Concept

\(\frac{f}{g}=\frac{x}{x+1}\cdot x=\frac{x^2}{x+1}\). Because of the original functions, \(x\ne0,-1\) remains.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{x^2}{x+1},\ x\ne0,-1\). \(\frac{f}{g}=\frac{x}{x+1}\cdot x=\frac{x^2}{x+1}\). Because of the original functions, \(x\ne0,-1\) remains.

Step 3

Exam Tip

\(\frac{f}{g}=\frac{x}{x+1}\cdot x=\frac{x^2}{x+1}\)। मूल फलनों के कारण \(x\ne0,-1\) रहेगा।

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यदि (f(x)=2x-2-1) और (g(x)=x-2+2) हैं, तो ((3f-2g)(x)) क्या होगा?

If (f(x)=2x-2-1) and (g(x)=x-2+2), what is ((3f-2g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(4x^2-7\)

Step 1

Concept

(3f-2g=3\(2x^2-1\)-2\(x^2+2\)=4x-2-7). Sign mistakes in constant terms are common.

Step 2

Why this answer is correct

The correct answer is A. \(4x^2-7\). (3f-2g=3\(2x^2-1\)-2\(x^2+2\)=4x-2-7). Sign mistakes in constant terms are common.

Step 3

Exam Tip

(3f-2g=3\(2x^2-1\)-2\(x^2+2\)=4x-2-7)। स्थिर पदों में ऋण चिह्न की गलती आम होती है।

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यदि (f(x)=\sqrt{x-4}) और (g(x)=\frac{1}{x-6}) हैं, तो (\left\(\frac{f}{g}\right\)(x)) का प्रांत क्या होगा?

If (f(x)=\sqrt{x-4}) and (g(x)=\frac{1}{x-6}), what is the domain of (\left\(\frac{f}{g}\right\)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x\ge4,\ x\ne6\)

Step 1

Concept

For (f), \(x\ge4\), and for (g), \(x\ne6\). In \(\frac{f}{g}\), (g(x)\ne0) is also needed, but \(\frac{1}{x-6}\) is never (0).

Step 2

Why this answer is correct

The correct answer is A. \(x\ge4,\ x\ne6\). For (f), \(x\ge4\), and for (g), \(x\ne6\). In \(\frac{f}{g}\), (g(x)\ne0) is also needed, but \(\frac{1}{x-6}\) is never (0).

Step 3

Exam Tip

(f) के लिए \(x\ge4\) और (g) के लिए \(x\ne6\)। \(\frac{f}{g}\) में (g(x)\ne0) भी चाहिए, पर \(\frac{1}{x-6}\) कभी (0) नहीं होता।

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यदि (f(x)=x-1) और (g(x)=\frac{1}{x-1}) हैं, तो ((f+g)(2)) का मान क्या है?

If (f(x)=x-1) and (g(x)=\frac{1}{x-1}), what is the value of ((f+g)(2))?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

(f(2)=1) and (g(2)=1), so the sum is (2). Here (x=1) is excluded, but (x=2) is valid.

Step 2

Why this answer is correct

The correct answer is A. (2). (f(2)=1) and (g(2)=1), so the sum is (2). Here (x=1) is excluded, but (x=2) is valid.

Step 3

Exam Tip

(f(2)=1) और (g(2)=1), इसलिए योग (2) है। यहाँ (x=1) निषिद्ध है, पर (x=2) मान्य है।

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यदि (f(x)=x-2-2x) और (g(x)=x-2+2x) हैं, तो ((fg)(x)) का सही गुणनखंडित रूप क्या है?

If (f(x)=x-2-2x) and (g(x)=x-2+2x), what is the correct factorized form of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. (x-2(x-2)(x+2))

Step 1

Concept

(f=x(x-2)) and (g=x(x+2)), so (fg=x-2(x-2)(x+2)). Factoring first is better than long expansion.

Step 2

Why this answer is correct

The correct answer is A. (x-2(x-2)(x+2)). (f=x(x-2)) and (g=x(x+2)), so (fg=x-2(x-2)(x+2)). Factoring first is better than long expansion.

Step 3

Exam Tip

(f=x(x-2)) और (g=x(x+2)), इसलिए (fg=x-2(x-2)(x+2))। पहले गुणनखंड बनाना लंबे विस्तार से बेहतर है।

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यदि (f(x)=\sqrt{x-2-1}) और (g(x)=\sqrt{4-x-2}) हैं, तो ((f+g)(x)) का प्रांत क्या है?

If (f(x)=\sqrt{x-2-1}) and (g(x)=\sqrt{4-x-2}), what is the domain of ((f+g)(x))?

Explanation opens after your attempt
Correct Answer

A. \([-2,-1]\cup[1,2]\)

Step 1

Concept

First \(x^2-1\ge0\) gives \(|x|\ge1\), and \(4-x^2\ge0\) gives \(|x|\le2\). The intersection is \([-2,-1]\cup[1,2]\).

Step 2

Why this answer is correct

The correct answer is A. \([-2,-1]\cup[1,2]\). First \(x^2-1\ge0\) gives \(|x|\ge1\), and \(4-x^2\ge0\) gives \(|x|\le2\). The intersection is \([-2,-1]\cup[1,2]\).

Step 3

Exam Tip

पहले \(x^2-1\ge0\) से \(|x|\ge1\), और \(4-x^2\ge0\) से \(|x|\le2\)। प्रतिच्छेद \([-2,-1]\cup[1,2]\) है।

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यदि (f(x)=x-2+4x+4) और (g(x)=x+2) हैं, तो (\left\(\frac{f}{g}\right\)(-2)) के बारे में सही कथन कौन सा है?

If (f(x)=x-2+4x+4) and (g(x)=x+2), which statement about (\left\(\frac{f}{g}\right\)(-2)) is correct?

Explanation opens after your attempt
Correct Answer

A. अपरिभाषित हैIt is undefined

Step 1

Concept

(\frac{f}{g}=\frac{(x+2)2}{x+2}), but at (x=-2) the original denominator is (0). Cancellation does not bring that point back into the domain.

Step 2

Why this answer is correct

The correct answer is A. अपरिभाषित है / It is undefined. (\frac{f}{g}=\frac{(x+2)2}{x+2}), but at (x=-2) the original denominator is (0). Cancellation does not bring that point back into the domain.

Step 3

Exam Tip

(\frac{f}{g}=\frac{(x+2)2}{x+2}) है, पर (x=-2) पर मूल हर (0) है। कटाव के बाद भी वह बिंदु प्रांत में वापस नहीं आता।

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यदि (f(x)=\frac{x-2-9}{x-3}) और (g(x)=x+3) हैं, तो (f) और (g) के बारे में सही कथन क्या है?

If (f(x)=\frac{x-2-9}{x-3}) and (g(x)=x+3), what is the correct statement about (f) and (g)?

Explanation opens after your attempt
Correct Answer

A. दोनों सूत्र समान हैं पर प्रांत अलग हैंTheir formulas match after simplification but domains differ

Step 1

Concept

(f(x)=x+3) only for \(x\ne3\), while (g) is defined for all real (x). The same algebraic form does not always mean the same function.

Step 2

Why this answer is correct

The correct answer is A. दोनों सूत्र समान हैं पर प्रांत अलग हैं / Their formulas match after simplification but domains differ. (f(x)=x+3) only for \(x\ne3\), while (g) is defined for all real (x). The same algebraic form does not always mean the same function.

Step 3

Exam Tip

(f(x)=x+3) केवल \(x\ne3\) के लिए है, जबकि (g) सभी वास्तविक (x) पर परिभाषित है। समान बीजगणितीय रूप हमेशा समान फलन नहीं बनाता।

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यदि (f(x)=\frac{x+2}{x-2}) और (g(x)=\frac{x-2}{x+2}) हैं, तो ((f+g)(x)) का सही रूप क्या है?

If (f(x)=\frac{x+2}{x-2}) and (g(x)=\frac{x-2}{x+2}), what is the correct form of ((f+g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(\frac{2x^2+8}{x^2-4},\ x\ne\pm2\)

Step 1

Concept

((x+2)2+(x-2)2=2x-2+8) and the denominator is \(x^2-4\). The middle terms cancel when expanding the squares.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{2x^2+8}{x^2-4},\ x\ne\pm2\). ((x+2)2+(x-2)2=2x-2+8) and the denominator is \(x^2-4\). The middle terms cancel when expanding the squares.

Step 3

Exam Tip

((x+2)2+(x-2)2=2x-2+8) और हर \(x^2-4\) है। वर्गों को फैलाते समय मध्यम पद कटते हैं।

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यदि (f(x)=x-2-6x+9) और (g(x)=x-3) हैं, तो (\left\(\frac{f}{g}\right\)(5)) का मान क्या है?

If (f(x)=x-2-6x+9) and (g(x)=x-3), what is the value of (\left\(\frac{f}{g}\right\)(5))?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

(\frac{f}{g}=\frac{(x-3)2}{x-3}=x-3), where \(x\ne3\). At (x=5), the value is (2).

Step 2

Why this answer is correct

The correct answer is A. (2). (\frac{f}{g}=\frac{(x-3)2}{x-3}=x-3), where \(x\ne3\). At (x=5), the value is (2).

Step 3

Exam Tip

(\frac{f}{g}=\frac{(x-3)2}{x-3}=x-3), जहाँ \(x\ne3\)। (x=5) पर मान (2) है।

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यदि (f(x)=\sqrt{x+3}) और (g(x)=\sqrt{x-1}) हैं, तो ((fg)(x)) का सही सरलीकृत रूप और प्रांत कौन सा है?

If (f(x)=\sqrt{x+3}) and (g(x)=\sqrt{x-1}), what are the correct simplified form and domain of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{x^2+2x-3},\ x\ge1\)

Step 1

Concept

For both square roots, \(x+3\ge0\) and \(x-1\ge0\), so \(x\ge1\). The product is (\sqrt{(x+3)(x-1)}=\sqrt{x-2+2x-3}).

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{x^2+2x-3},\ x\ge1\). For both square roots, \(x+3\ge0\) and \(x-1\ge0\), so \(x\ge1\). The product is (\sqrt{(x+3)(x-1)}=\sqrt{x-2+2x-3}).

Step 3

Exam Tip

दोनों वर्गमूलों के लिए \(x+3\ge0\) और \(x-1\ge0\), इसलिए \(x\ge1\)। गुणनफल (\sqrt{(x+3)(x-1)}=\sqrt{x-2+2x-3}) है।

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यदि (f(x)=\frac{x-2}{x+1}) और (g(x)=\frac{1}{x+1}) हैं, तो ((f-g)(x)) का सरल रूप क्या होगा?

If (f(x)=\frac{x-2}{x+1}) and (g(x)=\frac{1}{x+1}), what is the simplified form of ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(x-1,\ x\ne-1\)

Step 1

Concept

(\frac{x-2-1}{x+1}=\frac{(x-1)(x+1)}{x+1}=x-1), but (x=-1) is excluded. Use the original denominator to set restrictions.

Step 2

Why this answer is correct

The correct answer is A. \(x-1,\ x\ne-1\). (\frac{x-2-1}{x+1}=\frac{(x-1)(x+1)}{x+1}=x-1), but (x=-1) is excluded. Use the original denominator to set restrictions.

Step 3

Exam Tip

(\frac{x-2-1}{x+1}=\frac{(x-1)(x+1)}{x+1}=x-1), पर (x=-1) हटेगा। मूल हर से प्रतिबंध तय करें।

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यदि (f(x)=x-2+2) और (g(x)=2x) हैं, तो ((fg)(x)) का न्यूनतम मान किस बारे में सही है?

If (f(x)=x-2+2) and (g(x)=2x), what is correct about the minimum value of ((fg)(x))?

Explanation opens after your attempt
Correct Answer

A. न्यूनतम मान नहीं हैNo minimum value exists

Step 1

Concept

((fg)(x)=2x-3+4x), which tends to \(-\infty\) as \(x\to-\infty\). Therefore no real minimum value exists.

Step 2

Why this answer is correct

The correct answer is A. न्यूनतम मान नहीं है / No minimum value exists. ((fg)(x)=2x-3+4x), which tends to \(-\infty\) as \(x\to-\infty\). Therefore no real minimum value exists.

Step 3

Exam Tip

((fg)(x)=2x-3+4x), जो \(x\to-\infty\) पर \(-\infty\) की ओर जाता है। इसलिए कोई न्यूनतम वास्तविक मान नहीं है।

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यदि (f(x)=\frac{1}{x-1}) और (g(x)=\frac{1}{x+1}) हैं, तो ((f-g)(x)) का सही रूप क्या है?

If (f(x)=\frac{1}{x-1}) and (g(x)=\frac{1}{x+1}), what is the correct form of ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. \(\frac{2}{x^2-1},\ x\ne\pm1\)

Step 1

Concept

(\frac{1}{x-1}-\frac{1}{x+1}=\frac{x+1-(x-1)}{x-2-1}=\frac{2}{x-2-1}). The zeros \(x=\pm1\) of the denominator are excluded.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{2}{x^2-1},\ x\ne\pm1\). (\frac{1}{x-1}-\frac{1}{x+1}=\frac{x+1-(x-1)}{x-2-1}=\frac{2}{x-2-1}). The zeros \(x=\pm1\) of the denominator are excluded.

Step 3

Exam Tip

(\frac{1}{x-1}-\frac{1}{x+1}=\frac{x+1-(x-1)}{x-2-1}=\frac{2}{x-2-1})। हर के शून्य \(x=\pm1\) निषिद्ध हैं।

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यदि (f(x)=\sqrt{x+2}) और (g(x)=\sqrt{6-x}) हैं, तो (\left\(\frac{f-g}{f+g}\right\)(x)) का वास्तविक प्रांत क्या होगा?

If (f(x)=\sqrt{x+2}) and (g(x)=\sqrt{6-x}), what is the real domain of (\left\(\frac{f-g}{f+g}\right\)(x))?

Explanation opens after your attempt
Correct Answer

A. ([-2,6])

Step 1

Concept

For both square roots, \(x+2\ge0\) and \(6-x\ge0\), so \(-2\le x\le6\). The denominator (f(x)+g(x)) is never (0) on this interval, so no point is removed.

Step 2

Why this answer is correct

The correct answer is A. ([-2,6]). For both square roots, \(x+2\ge0\) and \(6-x\ge0\), so \(-2\le x\le6\). The denominator (f(x)+g(x)) is never (0) on this interval, so no point is removed.

Step 3

Exam Tip

दोनों वर्गमूलों के लिए \(x+2\ge0\) और \(6-x\ge0\), इसलिए \(-2\le x\le6\)। हर (f(x)+g(x)) इस अंतराल में (0) नहीं होता, इसलिए कोई बिंदु हटता नहीं है।

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Class 11 Mathematics Quiz FAQs

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