Hard Mathematics Chapter 1: Real Numbers Class 10 Level 17

\(\sqrt{5}\) की सिद्धि में यदि अंत में (p=5m) और (q=5n) मिलते हैं, तो \(\frac{p}{q}\) के सरलतम रूप पर सबसे सटीक टिप्पणी क्या होगी?

In the proof of \(\sqrt{5}\), if finally (p=5m) and (q=5n) are obtained, what is the most accurate comment on the lowest form of \(\frac{p}{q}\)?

Explanation opens after your attempt
Correct Answer

A. यह सरलतम रूप नहीं हो सकता, क्योंकि इसे (5) से घटाया जा सकता हैIt cannot be in lowest form because it can be reduced by (5)

Step 1

Concept

If (p=5m) and (q=5n), both numerator and denominator have common factor (5).

Step 2

Why this answer is correct

So \(\frac{p}{q}=\frac{5m}{5n}=\frac{m}{n}\), meaning the fraction can be reduced.

Step 3

Exam Tip

This contradicts the lowest-form assumption, so \(\sqrt{5}\) is proved irrational. चरण 1: (p=5m) और (q=5n) होने पर अंश और हर दोनों में (5) साझा गुणनखंड है। चरण 2: इसलिए \(\frac{p}{q}=\frac{5m}{5n}=\frac{m}{n}\) लिखा जा सकता है, यानी भिन्न घट सकती है। चरण 3: यह सरलतम रूप की मान्यता के विरुद्ध है, इसलिए \(\sqrt{5}\) अपरिमेय सिद्ध होती है।

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The correct answer is A. यह सरलतम रूप नहीं हो सकता, क्योंकि इसे (5) से घटाया जा सकता है / It cannot be in lowest form because it can be reduced by (5).

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