यदि \(z=\sqrt{13}-\sqrt{5}\) है, तो \(z^2\) का मान कौन-सा है?

If \(z=\sqrt{13}-\sqrt{5}\), which is the value of \(z^2\)?

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

A. \(18-2\sqrt{65}\)

Step 1

Concept

(\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}). The middle term remains negative.

Step 2

Why this answer is correct

The correct answer is A. \(18-2\sqrt{65}\). (\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}). The middle term remains negative.

Step 3

Exam Tip

(\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}) है। मध्य पद का चिन्ह ऋणात्मक रहेगा।

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Mathematics Answer, Explanation and Revision Hints

यदि \(z=\sqrt{13}-\sqrt{5}\) है, तो \(z^2\) का मान कौन-सा है? / If \(z=\sqrt{13}-\sqrt{5}\), which is the value of \(z^2\)?

Correct Answer: A. \(18-2\sqrt{65}\). Explanation: (\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}) है। मध्य पद का चिन्ह ऋणात्मक रहेगा। / (\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}). The middle term remains negative.

Which concept should I revise for this Mathematics MCQ?

(\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}). The middle term remains negative.

What exam hint can help solve this Mathematics question?

(\(\sqrt{13}-\sqrt{5}\)2=13+5-2\sqrt{65}) है। मध्य पद का चिन्ह ऋणात्मक रहेगा।