Hard Mathematics Chapter 1: Real Numbers Class 10 Level 18

कौन-सा तर्क सीधे सिद्ध करता है कि \(\sqrt{3}\) परिमेय नहीं हो सकता?

Which argument directly proves that \(\sqrt{3}\) cannot be rational?

Explanation opens after your attempt
Correct Answer

A. मानने पर अंश और हर दोनों (3) से विभाज्य हो जाते हैंOn assuming it rational, numerator and denominator both become divisible by (3)

Step 1

Concept

Taking \(\sqrt{3}=\frac{p}{q}\) gives \(p^2=3q^2\).

Step 2

Why this answer is correct

This forces both (p) and (q) to have (3) as a common factor.

Step 3

Exam Tip

That contradicts the condition of being coprime. चरण 1: \(\sqrt{3}\) को \(\frac{p}{q}\) मानकर \(p^2=3q^2\) बनता है। चरण 2: इससे (p) और (q) दोनों में (3) साझा गुणनखंड बन जाता है। चरण 3: यही बात सहअभाज्यता से टकराती है।

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The correct answer is A. मानने पर अंश और हर दोनों (3) से विभाज्य हो जाते हैं / On assuming it rational, numerator and denominator both become divisible by (3).

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