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Concept-wise Practice

quotient-functions MCQ Questions for Class 11

quotient-functions se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

13 questions tagged with quotient-functions.

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

If (f(x)=x-2-4) and (g(x)=x-2) then what is the simplified form and restriction of (\left\(\frac{f}{g}\right\)(x))?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

(\left\(\frac{f}{g}\right\)(x)=\frac{x-2-4}{x-2}=x+2) but \(x\ne 2\). Even after simplifying do not forget the original denominator restriction.

Step 2

Why this answer is correct

The correct answer is A. (x+2), \(x\ne 2\). (\left\(\frac{f}{g}\right\)(x)=\frac{x-2-4}{x-2}=x+2) but \(x\ne 2\). Even after simplifying do not forget the original denominator restriction.

Step 3

Exam Tip

(\left\(\frac{f}{g}\right\)(x)=\frac{x-2-4}{x-2}=x+2) पर \(x\ne 2\)। सरल करने के बाद भी मूल हर का प्रतिबंध न भूलें।

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यदि (f(x)=\frac{1}{x}) और (g(x)=\frac{1}{x+1}) हों, तो (\left\(\frac{f}{g}\right\)(x)) का सही रूप और प्रांत क्या होगा?

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

Explanation opens after your attempt
Correct Answer

A. \(\frac{x+1}{x},\ x\ne 0,-1\)

Step 1

Concept

Dividing gives \(\frac{1}{x}\div\frac{1}{x+1}=\frac{x+1}{x}\). The original (g) also requires \(x\ne -1\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{x+1}{x},\ x\ne 0,-1\). Dividing gives \(\frac{1}{x}\div\frac{1}{x+1}=\frac{x+1}{x}\). The original (g) also requires \(x\ne -1\).

Step 3

Exam Tip

भाग देने पर \(\frac{1}{x}\div\frac{1}{x+1}=\frac{x+1}{x}\) मिलता है। मूल (g) के लिए \(x\ne -1\) भी जरूरी है।

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यदि (f(x)=\frac{x}{x-3}) और (g(x)=\frac{x-3}{x}) हों, तो (\left\(\frac{f}{g}\right\)(x)) का प्रांत क्या होगा?

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

Explanation opens after your attempt
Correct Answer

A. \( \mathbb{R}\setminus{0,3} \)

Step 1

Concept

(f) needs \(x\ne 3\), (g) needs \(x\ne 0\), and divisor (g(x)\ne 0) gives \(x\ne 3\). Together, \(x\ne 0,3\).

Step 2

Why this answer is correct

The correct answer is A. \( \mathbb{R}\setminus{0,3} \). (f) needs \(x\ne 3\), (g) needs \(x\ne 0\), and divisor (g(x)\ne 0) gives \(x\ne 3\). Together, \(x\ne 0,3\).

Step 3

Exam Tip

(f) के लिए \(x\ne 3\), (g) के लिए \(x\ne 0\), और भाजक (g(x)\ne 0) से \(x\ne 3\)। सभी प्रतिबंध मिलाकर \(x\ne 0,3\) मिलते हैं।

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यदि (f(x)=x-2-4) और (g(x)=x-2) हों, तो (\left\(\frac{f}{g}\right\)(x)) किस रूप में सही है?

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

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Even after simplification, the original denominator must satisfy \(x-2\ne 0\). Cancelled denominator values do not return to the domain.

Step 2

Why this answer is correct

The correct answer is A. \(x+2,\ x\ne 2\). Even after simplification, the original denominator must satisfy \(x-2\ne 0\). Cancelled denominator values do not return to the domain.

Step 3

Exam Tip

सरलीकरण के बाद भी मूल हर \(x-2\ne 0\) होना चाहिए। रद्द करने से हटे हुए मान वापस प्रांत में नहीं आते।

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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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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)=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)=\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)=\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)=\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-2-4) 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)=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)=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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