\(\frac{5}{\sqrt{12}+\sqrt{7}}\) का परिमेयकृत रूप क्या है?

What is the rationalised form of \(\frac{5}{\sqrt{12}+\sqrt{7}}\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \(\sqrt{12}-\sqrt{7}\)

Step 1

Concept

Multiplying by the conjugate makes the denominator (12-7=5). So (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}).

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{12}-\sqrt{7}\). Multiplying by the conjugate makes the denominator (12-7=5). So (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}).

Step 3

Exam Tip

संयुग्मी से गुणा करने पर हर (12-7=5) बनता है। इसलिए (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}) है।

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Mathematics Answer, Explanation and Revision Hints

\(\frac{5}{\sqrt{12}+\sqrt{7}}\) का परिमेयकृत रूप क्या है? / What is the rationalised form of \(\frac{5}{\sqrt{12}+\sqrt{7}}\)?

Correct Answer: A. \(\sqrt{12}-\sqrt{7}\). Explanation: संयुग्मी से गुणा करने पर हर (12-7=5) बनता है। इसलिए (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}) है। / Multiplying by the conjugate makes the denominator (12-7=5). So (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}).

Which concept should I revise for this Mathematics MCQ?

Multiplying by the conjugate makes the denominator (12-7=5). So (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}).

What exam hint can help solve this Mathematics question?

संयुग्मी से गुणा करने पर हर (12-7=5) बनता है। इसलिए (\frac{5\(\sqrt{12}-\sqrt{7}\)}{5}=\sqrt{12}-\sqrt{7}) है।