Hard Mathematics Chapter 1: Real Numbers Class 10 Level 14

यदि \(\sqrt{p}\) परिमेय है और (p) धनात्मक पूर्णांक है, तो (p) कैसा होगा?

If \(\sqrt{p}\) is rational and (p) is a positive integer, what must (p) be?

Explanation opens after your attempt
Correct Answer

A. पूर्ण वर्गPerfect square

Step 1

Concept

A positive integer has a rational square root only when it is a perfect square.

Step 2

Why this answer is correct

For example, \(\sqrt{16}=4\), but \(\sqrt{18}\) is irrational.

Step 3

Exam Tip

Check perfect squares to decide the nature of a square root. चरण 1: धनात्मक पूर्णांक का परिमेय वर्गमूल तभी मिलता है जब वह पूर्ण वर्ग हो। चरण 2: जैसे (16) का वर्गमूल (4) है, पर (18) का वर्गमूल अपरिमेय है। चरण 3: वर्गमूल की प्रकृति जानने के लिए पूर्ण वर्ग जाँचें।

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The correct answer is A. पूर्ण वर्ग / Perfect square.

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