\( \frac{9}{4\sqrt{5}} \) का परिमेय हर वाला रूप क्या है?
What is the rationalised form of \( \frac{9}{4\sqrt{5}} \)?
Explanation opens after your attempt
A. \( \frac{9\sqrt{5}}{20} \)
Concept
Multiplying numerator and denominator by \( \sqrt{5} \) gives \( \frac{9\sqrt{5}}{20} \). The radical should be removed from the denominator.
Why this answer is correct
The correct answer is A. \( \frac{9\sqrt{5}}{20} \). Multiplying numerator and denominator by \( \sqrt{5} \) gives \( \frac{9\sqrt{5}}{20} \). The radical should be removed from the denominator.
Exam Tip
अंश और हर को \( \sqrt{5} \) से गुणा करने पर \( \frac{9\sqrt{5}}{20} \) मिलता है। हर से करणी हटनी चाहिए।
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