यदि \(a=8+\sqrt{7}\) और \(b=8-\sqrt{7}\) हैं तो \(a^2-b^2\) का मान क्या है?

If \(a=8+\sqrt{7}\) and \(b=8-\sqrt{7}\), what is the value of \(a^2-b^2\)?

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

B. \(32\sqrt{7}\)

Step 1

Concept

\(a-b=2\sqrt{7}\) and (a+b=16). Therefore \(a^2-b^2=32\sqrt{7}\).

Step 2

Why this answer is correct

The correct answer is B. \(32\sqrt{7}\). \(a-b=2\sqrt{7}\) and (a+b=16). Therefore \(a^2-b^2=32\sqrt{7}\).

Step 3

Exam Tip

\(a-b=2\sqrt{7}\) और (a+b=16) है। इसलिए \(a^2-b^2=32\sqrt{7}\) है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a=8+\sqrt{7}\) और \(b=8-\sqrt{7}\) हैं तो \(a^2-b^2\) का मान क्या है? / If \(a=8+\sqrt{7}\) and \(b=8-\sqrt{7}\), what is the value of \(a^2-b^2\)?

Correct Answer: B. \(32\sqrt{7}\). Explanation: \(a-b=2\sqrt{7}\) और (a+b=16) है। इसलिए \(a^2-b^2=32\sqrt{7}\) है। / \(a-b=2\sqrt{7}\) and (a+b=16). Therefore \(a^2-b^2=32\sqrt{7}\).

Which concept should I revise for this Mathematics MCQ?

\(a-b=2\sqrt{7}\) and (a+b=16). Therefore \(a^2-b^2=32\sqrt{7}\).

What exam hint can help solve this Mathematics question?

\(a-b=2\sqrt{7}\) और (a+b=16) है। इसलिए \(a^2-b^2=32\sqrt{7}\) है।