Easy Mathematics Chapter 1: Real Numbers Class 10 Level 17

कौन सा कथन \(\sqrt{5}\) की अपरिमेयता के प्रमाण को पूरा करता है?

Which statement completes the proof of irrationality of \(\sqrt{5}\)?

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Correct Answer

A. अतः \(\sqrt{5}\) अपरिमेय हैTherefore \(\sqrt{5}\) is irrational

Step 1

Concept

The rational assumption makes both (a) and (b) divisible by (5).

Step 2

Why this answer is correct

This contradicts the coprime condition.

Step 3

Exam Tip

Therefore the conclusion is that \(\sqrt{5}\) is irrational. चरण 1: परिमेय मान्यता से (a) और (b) दोनों (5) से विभाज्य मिलते हैं। चरण 2: यह सहअभाज्य होने की शर्त से टकराता है। चरण 3: इसलिए निष्कर्ष है कि \(\sqrt{5}\) अपरिमेय है।

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The correct answer is A. अतः \(\sqrt{5}\) अपरिमेय है / Therefore \(\sqrt{5}\) is irrational.

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