Easy Mathematics Chapter 1: Real Numbers Class 10 Level 17

कौन सा विकल्प बताता है कि \(\sqrt{2}\) परिमेय नहीं हो सकता?

Which option explains why \(\sqrt{2}\) cannot be rational?

Explanation opens after your attempt
Correct Answer

A. परिमेय मानने पर सरलतम भिन्न के अंश और हर दोनों सम मिलते हैंAssuming rational makes numerator and denominator of a lowest-form fraction both even

Step 1

Concept

Assuming rational, we write \(\sqrt{2}=\frac{a}{b}\) in lowest form.

Step 2

Why this answer is correct

The proof shows both (a) and (b) are even.

Step 3

Exam Tip

This contradicts lowest form, so \(\sqrt{2}\) cannot be rational. चरण 1: परिमेय मानकर \(\sqrt{2}=\frac{a}{b}\) सरलतम रूप में लिखते हैं। चरण 2: प्रमाण में (a) और (b) दोनों सम मिलते हैं। चरण 3: यह सरलतम रूप के विरुद्ध है, इसलिए \(\sqrt{2}\) परिमेय नहीं हो सकता।

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The correct answer is A. परिमेय मानने पर सरलतम भिन्न के अंश और हर दोनों सम मिलते हैं / Assuming rational makes numerator and denominator of a lowest-form fraction both even.

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