Hard Mathematics Polynomials Class 10 Level 25

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
Correct Answer

A. \(\frac{3-\sqrt{5}}{4}\)

Step 1

Concept

The conjugate of the denominator is \(3-\sqrt{5}\) and the denominator becomes (9-5=4). Multiply by the conjugate to rationalize.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

कौन सा विकल्प \(\frac{1}{3+\sqrt{5}}\) का परिमेय हर वाला रूप है? / Which option is the rationalized form of \(\frac{1}{3+\sqrt{5}}\)?

Correct Answer: A. \(\frac{3-\sqrt{5}}{4}\). Explanation: हर का संयुग्मी \(3-\sqrt{5}\) है और हर (9-5=4) बनता है। परिमेयकरण में संयुग्मी से गुणा करें। / The conjugate of the denominator is \(3-\sqrt{5}\) and the denominator becomes (9-5=4). Multiply by the conjugate to rationalize.

Which concept should I revise for this Mathematics MCQ?

The conjugate of the denominator is \(3-\sqrt{5}\) and the denominator becomes (9-5=4). Multiply by the conjugate to rationalize.

What exam hint can help solve this Mathematics question?

हर का संयुग्मी \(3-\sqrt{5}\) है और हर (9-5=4) बनता है। परिमेयकरण में संयुग्मी से गुणा करें।

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