कौन सी संख्या अपरिमेय नहीं है?
Which number is not irrational?
Explanation opens after your attempt
C. \(\sqrt{81}\)
Concept
\(\sqrt{81}=9\) is rational. The others are irrational.
Why this answer is correct
The correct answer is C. \(\sqrt{81}\). \(\sqrt{81}=9\) is rational. The others are irrational.
Exam Tip
\(\sqrt{81}=9\) परिमेय है। बाकी अपरिमेय हैं।
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