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undefined value MCQ Questions for Class 12

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

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2 questions tagged with undefined value.

Question 1/2 Easy Mathematics Relations and Functions Functions Class 12 Level 21

फलन (f(x)=\frac{2}{x-5}) किस मान पर परिभाषित नहीं है?

At which value is (f(x)=\frac{2}{x-5}) not defined?

Explanation opens after your attempt
Correct Answer

A. (x=5)

Step 1

Concept

The denominator of the fraction is (x-5).

Step 2

Why this answer is correct

(x-5=0) gives (x=5).

Step 3

Exam Tip

A function with zero denominator is not defined there. चरण 1: भिन्न में हर (x-5) है। चरण 2: (x-5=0) होने पर (x=5) मिलता है। चरण 3: हर शून्य होने पर फलन परिभाषित नहीं रहता।

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Question 2/2 Easy Mathematics Relations and Functions Functions Class 12 Level 20

यदि (f(x)=\frac{x-1}{x+1}), तो किस मान पर फलन परिभाषित नहीं है?

If (f(x)=\frac{x-1}{x+1}), at which value is the function not defined?

Explanation opens after your attempt
Correct Answer

A. (x=-1)

Step 1

Concept

The denominator of the function is (x+1).

Step 2

Why this answer is correct

Setting (x+1=0) gives (x=-1).

Step 3

Exam Tip

A fraction is undefined when the denominator is zero. चरण 1: फलन में हर (x+1) है। चरण 2: (x+1=0) करने पर (x=-1) मिलता है। चरण 3: हर शून्य होने पर भिन्न परिभाषित नहीं होता।

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