Easy Mathematics Chapter 1: Real Numbers Class 10 Level 15

\(\sqrt{21}\) का दशमलव विस्तार कैसा होगा?

What kind of decimal expansion does \(\sqrt{21}\) have?

Explanation opens after your attempt
Correct Answer

C. अनवसानी और अनावर्तीNon-terminating and non-recurring

Step 1

Concept

(21) is not a perfect square.

Step 2

Why this answer is correct

So \(\sqrt{21}\) is irrational and its decimal expansion is non-terminating and non-recurring.

Step 3

Exam Tip

An irrational number has no fixed recurring block. चरण 1: (21) पूर्ण वर्ग नहीं है। चरण 2: इसलिए \(\sqrt{21}\) अपरिमेय है और इसका दशमलव अनवसानी अनावर्ती होगा। चरण 3: अपरिमेय संख्या में कोई निश्चित आवर्ती समूह नहीं होता।

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The correct answer is C. अनवसानी और अनावर्ती / Non-terminating and non-recurring.

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