Expert Mathematics Chapter 1: Real Numbers Class 10 Level 18

\(\sqrt{5}\) की अपरिमेयता सिद्ध करते समय (a) और (b) दोनों (5) से विभाज्य निकलते हैं। इसका (\gcd(a,b)) पर क्या प्रभाव है?

While proving \(\sqrt{5}\) irrational, both (a) and (b) turn out divisible by (5). What is its effect on (\gcd(a,b))?

Explanation opens after your attempt
Correct Answer

C. (\gcd(a,b)) कम से कम (5) होगा(\gcd(a,b)) will be at least (5)

Step 1

Concept

Both numbers are divisible by (5).

Step 2

Why this answer is correct

Therefore their greatest common divisor cannot remain (1); it will be at least (5).

Step 3

Exam Tip

This breaks the coprimality condition. चरण 1: दोनों संख्याएँ (5) से विभाज्य हैं। चरण 2: इसलिए उनका महत्तम समापवर्तक (1) नहीं रह सकता, वह कम से कम (5) होगा। चरण 3: यह सहअभाज्यता की शर्त को तोड़ता है।

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The correct answer is C. (\gcd(a,b)) कम से कम (5) होगा / (\gcd(a,b)) will be at least (5).

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