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even common factor MCQ Questions for Class 10

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Practice Questions

1 questions tagged with even common factor.

Question 1/1 Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{2}\) के प्रमाण में यदि (a) और (b) दोनों सम हैं, तो उनका कम से कम कौन सा साझा गुणनखंड है?

In the proof of \(\sqrt{2}\), if both (a) and (b) are even, what is at least one common factor of them?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

An even number is always divisible by (2).

Step 2

Why this answer is correct

Both are even, so (2) is their common factor.

Step 3

Exam Tip

Finding a common factor contradicts the lowest-form condition. चरण 1: सम संख्या हमेशा (2) से विभाज्य होती है। चरण 2: दोनों सम हैं, इसलिए (2) दोनों का साझा गुणनखंड है। चरण 3: साझा गुणनखंड मिलना सरलतम रूप की शर्त से टकराता है।

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