(\(2+\sqrt{5}\)2) का प्रसार कौन-सा है?

Which is the expansion of (\(2+\sqrt{5}\)2)?

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

A. \(9+4\sqrt{5}\)

Step 1

Concept

(\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}). Do not forget the middle term while squaring.

Step 2

Why this answer is correct

The correct answer is A. \(9+4\sqrt{5}\). (\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}). Do not forget the middle term while squaring.

Step 3

Exam Tip

(\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}) है। वर्ग करते समय मध्य पद न भूलें।

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Mathematics Answer, Explanation and Revision Hints

(\(2+\sqrt{5}\)2) का प्रसार कौन-सा है? / Which is the expansion of (\(2+\sqrt{5}\)2)?

Correct Answer: A. \(9+4\sqrt{5}\). Explanation: (\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}) है। वर्ग करते समय मध्य पद न भूलें। / (\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}). Do not forget the middle term while squaring.

Which concept should I revise for this Mathematics MCQ?

(\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}). Do not forget the middle term while squaring.

What exam hint can help solve this Mathematics question?

(\(2+\sqrt{5}\)2=4+4\sqrt{5}+5=9+4\sqrt{5}) है। वर्ग करते समय मध्य पद न भूलें।