Medium Mathematics Chapter 1: Real Numbers Class 10 Level 15

निम्नलिखित में से कौन-सी संख्या परिमेय नहीं है?

Which of the following numbers is not rational?

Explanation opens after your attempt
Correct Answer

D. \(\sqrt{63}\)

Step 1

Concept

Terminating decimals, fractions, and recurring decimals are rational.

Step 2

Why this answer is correct

\(\sqrt{63}=3\sqrt{7}\), and \(\sqrt{7}\) is irrational.

Step 3

Exam Tip

Simplifying the square-root option is a good way to check it. चरण 1: समाप्त दशमलव, भिन्न और आवर्ती दशमलव परिमेय होते हैं। चरण 2: \(\sqrt{63}=3\sqrt{7}\), और \(\sqrt{7}\) अपरिमेय है। चरण 3: वर्गमूल वाले विकल्प को सरल करके जांचना अच्छा तरीका है।

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What is the correct answer to this Mathematics MCQ?

The correct answer is D. \(\sqrt{63}\).

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