यदि \(A=\{1,2\}\) और \(B=\{2,3\}\) हैं, तो \(A\times B\cap B\times A\) में कितने युग्म होंगे?
If \(A=\{1,2\}\) and \(B=\{2,3\}\), how many pairs are in \(A\times B\cap B\times A\)?
Explanation opens after your attempt
Correct Answer
A. (1)
Concept
Only ((2,2)) is common to both. For intersection, the whole ordered pair must be identical.
Why this answer is correct
The correct answer is A. (1). Only ((2,2)) is common to both. For intersection, the whole ordered pair must be identical.
Exam Tip
दोनों में केवल ((2,2)) समान युग्म है। प्रतिच्छेद के लिए पूरा क्रमित युग्म समान होना चाहिए।
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