यदि \(A={x:x^2=4}\) और \(B=\{-2,2\}\) हैं तो कौन सा कथन सही है?

If \(A={x:x^2=4}\) and \(B=\{-2,2\}\) then which statement is correct?

Explanation opens after your attempt
Correct Answer

A. (A=B)

Step 1

Concept

The solutions of \(x^2=4\) are (-2) and (2). Do not forget both signs in square equations.

Step 2

Why this answer is correct

The correct answer is A. (A=B). The solutions of \(x^2=4\) are (-2) and (2). Do not forget both signs in square equations.

Step 3

Exam Tip

समीकरण \(x^2=4\) के हल (-2) और (2) हैं। वर्ग समीकरण में दोनों चिह्नों को न भूलें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A={x:x^2=4}\) और \(B=\{-2,2\}\) हैं तो कौन सा कथन सही है? / If \(A={x:x^2=4}\) and \(B=\{-2,2\}\) then which statement is correct?

Correct Answer: A. (A=B). Explanation: समीकरण \(x^2=4\) के हल (-2) और (2) हैं। वर्ग समीकरण में दोनों चिह्नों को न भूलें। / The solutions of \(x^2=4\) are (-2) and (2). Do not forget both signs in square equations.

Which concept should I revise for this Mathematics MCQ?

The solutions of \(x^2=4\) are (-2) and (2). Do not forget both signs in square equations.

What exam hint can help solve this Mathematics question?

समीकरण \(x^2=4\) के हल (-2) और (2) हैं। वर्ग समीकरण में दोनों चिह्नों को न भूलें।