यदि \(a=\sqrt{17}+\sqrt{8}\) और \(b=\sqrt{17}-\sqrt{8}\) हैं तो (ab) और (a+b) का सही युग्म कौन-सा है?

If \(a=\sqrt{17}+\sqrt{8}\) and \(b=\sqrt{17}-\sqrt{8}\), which is the correct pair of (ab) and (a+b)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (9), \(2\sqrt{17}\)

Step 1

Concept

(ab=17-8=9) and \(a+b=2\sqrt{17}\). In a conjugate pair check product and sum separately.

Step 2

Why this answer is correct

The correct answer is A. (9), \(2\sqrt{17}\). (ab=17-8=9) and \(a+b=2\sqrt{17}\). In a conjugate pair check product and sum separately.

Step 3

Exam Tip

(ab=17-8=9) और \(a+b=2\sqrt{17}\) है। संयुग्मी युग्म में गुणन और योग अलग जाँचें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a=\sqrt{17}+\sqrt{8}\) और \(b=\sqrt{17}-\sqrt{8}\) हैं तो (ab) और (a+b) का सही युग्म कौन-सा है? / If \(a=\sqrt{17}+\sqrt{8}\) and \(b=\sqrt{17}-\sqrt{8}\), which is the correct pair of (ab) and (a+b)?

Correct Answer: A. (9), \(2\sqrt{17}\). Explanation: (ab=17-8=9) और \(a+b=2\sqrt{17}\) है। संयुग्मी युग्म में गुणन और योग अलग जाँचें। / (ab=17-8=9) and \(a+b=2\sqrt{17}\). In a conjugate pair check product and sum separately.

Which concept should I revise for this Mathematics MCQ?

(ab=17-8=9) and \(a+b=2\sqrt{17}\). In a conjugate pair check product and sum separately.

What exam hint can help solve this Mathematics question?

(ab=17-8=9) और \(a+b=2\sqrt{17}\) है। संयुग्मी युग्म में गुणन और योग अलग जाँचें।