\(\sqrt{25}\) का वास्तविक मान क्या है?

What is the real value of \(\sqrt{25}\)?

Author: Muft Shiksha Editorial Team Published: Updated:
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Correct Answer

A. 5

Explanation

Simple Explanation

\(\sqrt{25}\) का अर्थ 25 का मुख्य, अर्थात् गैर-ऋणात्मक, वर्गमूल है। चूँकि \(5^2=25\), इसलिए \(\sqrt{25}=5\)। \(-5\) का वर्ग भी 25 है, लेकिन वर्गमूल चिह्न का मुख्य मान ऋणात्मक नहीं लिया जाता। परीक्षा में याद रखें: \(\sqrt{x^2}=|x|\), न कि हमेशा \(x\)। / \(\sqrt{25}\) denotes the principal, or non-negative, square root of 25. Since \(5^2=25\), \(\sqrt{25}=5\). Although \((-5)^2\) is also 25, the principal square root is not negative. Exam tip: remember that \(\sqrt{x^2}=|x|\), not always \(x\).

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Mathematics Answer, Explanation and Revision Hints

\(\sqrt{25}\) का वास्तविक मान क्या है? / What is the real value of \(\sqrt{25}\)?

Correct Answer: A. 5. Explanation: \(\sqrt{25}\) का अर्थ 25 का मुख्य, अर्थात् गैर-ऋणात्मक, वर्गमूल है। चूँकि \(5^2=25\), इसलिए \(\sqrt{25}=5\)। \(-5\) का वर्ग भी 25 है, लेकिन वर्गमूल चिह्न का मुख्य मान ऋणात्मक नहीं लिया जाता। परीक्षा में याद रखें: \(\sqrt{x^2}=|x|\), न कि हमेशा \(x\)। / \(\sqrt{25}\) denotes the principal, or non-negative, square root of 25. Since \(5^2=25\), \(\sqrt{25}=5\). Although \((-5)^2\) is also 25, the principal square root is not negative. Exam tip: remember that \(\sqrt{x^2}=|x|\), not always \(x\).