\(\frac{7}{\sqrt{30}-\sqrt{23}}\) का परिमेयकृत रूप कौन-सा है?

Which is the rationalised form of \(\frac{7}{\sqrt{30}-\sqrt{23}}\)?

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

C. \(\sqrt{30}+\sqrt{23}\)

Step 1

Concept

Multiplying by the conjugate makes the denominator (30-23=7). So the answer is \(\sqrt{30}+\sqrt{23}\).

Step 2

Why this answer is correct

The correct answer is C. \(\sqrt{30}+\sqrt{23}\). Multiplying by the conjugate makes the denominator (30-23=7). So the answer is \(\sqrt{30}+\sqrt{23}\).

Step 3

Exam Tip

संयुग्मी से गुणा करने पर हर (30-23=7) बनता है। इसलिए उत्तर \(\sqrt{30}+\sqrt{23}\) है।

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Mathematics Answer, Explanation and Revision Hints

\(\frac{7}{\sqrt{30}-\sqrt{23}}\) का परिमेयकृत रूप कौन-सा है? / Which is the rationalised form of \(\frac{7}{\sqrt{30}-\sqrt{23}}\)?

Correct Answer: C. \(\sqrt{30}+\sqrt{23}\). Explanation: संयुग्मी से गुणा करने पर हर (30-23=7) बनता है। इसलिए उत्तर \(\sqrt{30}+\sqrt{23}\) है। / Multiplying by the conjugate makes the denominator (30-23=7). So the answer is \(\sqrt{30}+\sqrt{23}\).

Which concept should I revise for this Mathematics MCQ?

Multiplying by the conjugate makes the denominator (30-23=7). So the answer is \(\sqrt{30}+\sqrt{23}\).

What exam hint can help solve this Mathematics question?

संयुग्मी से गुणा करने पर हर (30-23=7) बनता है। इसलिए उत्तर \(\sqrt{30}+\sqrt{23}\) है।