यदि \(A={x:x\in \mathbb{Z},x^2=1}\) और \(B=\{-1,1\}\) हैं तो क्या सत्य है?
If \(A={x:x\in \mathbb{Z},x^2=1}\) and \(B=\{-1,1\}\), what is true?
Explanation opens after your attempt
Correct Answer
A. (A=B)
Concept
In integers, the solutions of \(x^2=1\) are (-1) and (1). Do not miss the negative solution.
Why this answer is correct
The correct answer is A. (A=B). In integers, the solutions of \(x^2=1\) are (-1) and (1). Do not miss the negative solution.
Exam Tip
पूर्णांकों में \(x^2=1\) के हल (-1) और (1) हैं। ऋणात्मक हल को न छोड़ें।
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