यदि \(a=\sqrt{5}-2\) तो ((a+2)2) क्या होगा?

If \(a=\sqrt{5}-2\) then what is ((a+2)2)?

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

B. 5

Step 1

Concept

\(a+2=\sqrt{5}\), so its square is 5. Simplify first.

Step 2

Why this answer is correct

The correct answer is B. 5. \(a+2=\sqrt{5}\), so its square is 5. Simplify first.

Step 3

Exam Tip

\(a+2=\sqrt{5}\) इसलिए वर्ग 5 होगा। पहले सरल करें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a=\sqrt{5}-2\) तो ((a+2)2) क्या होगा? / If \(a=\sqrt{5}-2\) then what is ((a+2)2)?

Correct Answer: B. 5. Explanation: \(a+2=\sqrt{5}\) इसलिए वर्ग 5 होगा। पहले सरल करें। / \(a+2=\sqrt{5}\), so its square is 5. Simplify first.

Which concept should I revise for this Mathematics MCQ?

\(a+2=\sqrt{5}\), so its square is 5. Simplify first.

What exam hint can help solve this Mathematics question?

\(a+2=\sqrt{5}\) इसलिए वर्ग 5 होगा। पहले सरल करें।