\(\frac{3}{\sqrt{8}+\sqrt{5}}\) का परिमेयकृत रूप क्या है?
What is the rationalised form of \(\frac{3}{\sqrt{8}+\sqrt{5}}\)?
Explanation opens after your attempt
Correct Answer
A. \(\sqrt{8}-\sqrt{5}\)
Concept
Multiplying by the conjugate makes the denominator (8-5=3). So (\frac{3\(\sqrt{8}-\sqrt{5}\)}{3}=\sqrt{8}-\sqrt{5}).
Why this answer is correct
The correct answer is A. \(\sqrt{8}-\sqrt{5}\). Multiplying by the conjugate makes the denominator (8-5=3). So (\frac{3\(\sqrt{8}-\sqrt{5}\)}{3}=\sqrt{8}-\sqrt{5}).
Exam Tip
संयुग्मी से गुणा करने पर हर (8-5=3) बनता है। इसलिए (\frac{3\(\sqrt{8}-\sqrt{5}\)}{3}=\sqrt{8}-\sqrt{5}) है।
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