Expert Mathematics Chapter 1: Real Numbers Class 10 Level 14

कौन-सा विकल्प (2) और (3) के बीच दो अपरिमेय संख्याओं का सही युग्म है?

Which option is a correct pair of two irrational numbers between (2) and (3)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5},\sqrt{8}\)

Step 1

Concept

\(2=\sqrt{4}\) and \(3=\sqrt{9}\).

Step 2

Why this answer is correct

(5) and (8) lie between (4) and (9) and are not perfect squares. Therefore \(\sqrt{5}\) and \(\sqrt{8}\) are irrational numbers between (2) and (3).

Step 3

Exam Tip

Non-perfect squares between two square numbers give such pairs. चरण 1: \(2=\sqrt{4}\) और \(3=\sqrt{9}\) हैं। चरण 2: (5) और (8) दोनों (4) और (9) के बीच हैं तथा पूर्ण वर्ग नहीं हैं। इसलिए \(\sqrt{5}\) और \(\sqrt{8}\) दोनों अपरिमेय हैं और (2) से (3) के बीच हैं। चरण 3: बीच के अपूर्ण वर्गों से ऐसे युग्म बनते हैं।

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(\sqrt{5},\sqrt{8}\).

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