Medium Mathematics Polynomials Class 10 Level 25

यदि \(a=\sqrt{20}\) है तो (a) का सरल रूप क्या है?

If \(a=\sqrt{20}\), what is the simplified form of (a)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{5}\)

Step 1

Concept

\(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\). Look for a perfect square factor inside the root.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{5}\). \(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\). Look for a perfect square factor inside the root.

Step 3

Exam Tip

\(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\) होता है। जड़ में पूर्ण वर्ग गुणनखंड खोजें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a=\sqrt{20}\) है तो (a) का सरल रूप क्या है? / If \(a=\sqrt{20}\), what is the simplified form of (a)?

Correct Answer: A. \(2\sqrt{5}\). Explanation: \(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\) होता है। जड़ में पूर्ण वर्ग गुणनखंड खोजें। / \(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\). Look for a perfect square factor inside the root.

Which concept should I revise for this Mathematics MCQ?

\(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\). Look for a perfect square factor inside the root.

What exam hint can help solve this Mathematics question?

\(\sqrt{20}=\sqrt{4\times5}=2\sqrt{5}\) होता है। जड़ में पूर्ण वर्ग गुणनखंड खोजें।

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