यदि \(A={x:x\) \(x^2-1=0\) का पूर्णांक हल है(}) और \(B={x:x\in\mathbb{Z}\) तथा (-2<x<2) और \(x\ne0}\) हैं तो क्या सत्य है?
If \(A={x:x\) is an integer solution of \(x^2-1=0\)(}) and \(B={x:x\in\mathbb{Z}\) with (-2<x<2) and \(x\ne0}\), what is true?
Explanation opens after your attempt
A. (A=B)
Concept
Both sets contain only (-1) and (1). Different descriptions can give equal sets.
Why this answer is correct
The correct answer is A. (A=B). Both sets contain only (-1) and (1). Different descriptions can give equal sets.
Exam Tip
दोनों समुच्चयों में (-1) और (1) ही आते हैं। अलग वर्णन बराबर समुच्चय दे सकते हैं।
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