इनमें से कौन-सा वर्गमूल परिमेय है?
Which of these square roots is rational?
Explanation opens after your attempt
B. \(\sqrt{49}\)
Concept
\(\sqrt{49}=7\) so it is rational. The square root of a perfect square is a rational integer.
Why this answer is correct
The correct answer is B. \(\sqrt{49}\). \(\sqrt{49}=7\) so it is rational. The square root of a perfect square is a rational integer.
Exam Tip
\(\sqrt{49}=7\) इसलिए यह परिमेय है। पूर्ण वर्ग का वर्गमूल हमेशा परिमेय पूर्णांक होता है।
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