Medium Mathematics Polynomials Class 10 Level 27

कौन सा विकल्प \(12-\sqrt{m}\) को परिमेय बनाता है?

Which option makes \(12-\sqrt{m}\) rational?

Explanation opens after your attempt
Correct Answer

A. (m=225)

Step 1

Concept

\(\sqrt{225}=15\) is rational so \(12-\sqrt{225}\) will be rational. The root of a perfect square is rational.

Step 2

Why this answer is correct

The correct answer is A. (m=225). \(\sqrt{225}=15\) is rational so \(12-\sqrt{225}\) will be rational. The root of a perfect square is rational.

Step 3

Exam Tip

\(\sqrt{225}=15\) परिमेय है इसलिए \(12-\sqrt{225}\) परिमेय होगा। पूर्ण वर्ग की जड़ परिमेय होती है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

कौन सा विकल्प \(12-\sqrt{m}\) को परिमेय बनाता है? / Which option makes \(12-\sqrt{m}\) rational?

Correct Answer: A. (m=225). Explanation: \(\sqrt{225}=15\) परिमेय है इसलिए \(12-\sqrt{225}\) परिमेय होगा। पूर्ण वर्ग की जड़ परिमेय होती है। / \(\sqrt{225}=15\) is rational so \(12-\sqrt{225}\) will be rational. The root of a perfect square is rational.

Which concept should I revise for this Mathematics MCQ?

\(\sqrt{225}=15\) is rational so \(12-\sqrt{225}\) will be rational. The root of a perfect square is rational.

What exam hint can help solve this Mathematics question?

\(\sqrt{225}=15\) परिमेय है इसलिए \(12-\sqrt{225}\) परिमेय होगा। पूर्ण वर्ग की जड़ परिमेय होती है।

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