कौन सा विकल्प \(\frac{1}{3+\sqrt{5}}\) का परिमेय हर वाला रूप है?
Which option is the rationalized form of \(\frac{1}{3+\sqrt{5}}\)?
Explanation opens after your attempt
A. \(\frac{3-\sqrt{5}}{4}\)
Concept
The conjugate of the denominator is \(3-\sqrt{5}\) and the denominator becomes (9-5=4). Multiply by the conjugate to rationalize.
Why this answer is correct
The correct answer is A. \(\frac{3-\sqrt{5}}{4}\). The conjugate of the denominator is \(3-\sqrt{5}\) and the denominator becomes (9-5=4). Multiply by the conjugate to rationalize.
Exam Tip
हर का संयुग्मी \(3-\sqrt{5}\) है और हर (9-5=4) बनता है। परिमेयकरण में संयुग्मी से गुणा करें।
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