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