कौन-सा विकल्प अपरिमेय संख्या का परिमेयकृत हर वाला बराबर रूप है?
Which option is an equal form of an irrational number with a rationalised denominator?
Explanation opens after your attempt
Correct Answer
C. \(\frac{4}{\sqrt{11}}=\frac{4\sqrt{11}}{11}\)
Concept
Multiplying numerator and denominator by \(\sqrt{11}\) gives \(\frac{4\sqrt{11}}{11}\). Rationalisation must keep the value equal.
Why this answer is correct
The correct answer is C. \(\frac{4}{\sqrt{11}}=\frac{4\sqrt{11}}{11}\). Multiplying numerator and denominator by \(\sqrt{11}\) gives \(\frac{4\sqrt{11}}{11}\). Rationalisation must keep the value equal.
Exam Tip
अंश और हर को \(\sqrt{11}\) से गुणा करने पर \(\frac{4\sqrt{11}}{11}\) मिलता है। परिमेयकरण में बराबर मान रखना जरूरी है।
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