Hard Mathematics Chapter 1: Real Numbers Class 10 Level 17

\(\sqrt{2}\) की सिद्धि में (a=2k) और (b=2r) मिलने पर (\gcd(a,b)) के बारे में कौन सा कथन सही है?

In the proof of \(\sqrt{2}\), if (a=2k) and (b=2r), which statement about (\gcd(a,b)) is correct?

Explanation opens after your attempt
Correct Answer

A. (\gcd(a,b)) कम से कम (2) है(\gcd(a,b)) is at least (2)

Step 1

Concept

(a=2k) and (b=2r) show both are divisible by (2).

Step 2

Why this answer is correct

So their greatest common divisor cannot remain (1).

Step 3

Exam Tip

This breaks the initial coprime condition. चरण 1: (a=2k) और (b=2r) से दोनों (2) से विभाज्य हैं। चरण 2: इसलिए उनका महत्तम समापवर्तक (1) नहीं रह सकता। चरण 3: यह सहअभाज्य होने की आरंभिक शर्त को तोड़ता है।

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The correct answer is A. (\gcd(a,b)) कम से कम (2) है / (\gcd(a,b)) is at least (2).

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