\(\frac{3}{\sqrt{2}+1}\) का परिमेयकृत रूप कौन-सा है?
Which is the rationalised form of \(\frac{3}{\sqrt{2}+1}\)?
Explanation opens after your attempt
Correct Answer
C. \(3\sqrt{2}-3\)
Concept
Multiplying by the conjugate \(\sqrt{2}-1\) gives (3\(\sqrt{2}-1\)). So the form is \(3\sqrt{2}-3\).
Why this answer is correct
The correct answer is C. \(3\sqrt{2}-3\). Multiplying by the conjugate \(\sqrt{2}-1\) gives (3\(\sqrt{2}-1\)). So the form is \(3\sqrt{2}-3\).
Exam Tip
हर के संयुग्मी \(\sqrt{2}-1\) से गुणा करने पर (3\(\sqrt{2}-1\)) मिलता है। इसलिए रूप \(3\sqrt{2}-3\) है।
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