यदि \(A=\{1,2\}\), \(B=\{2,3\}\) और \(C=\{3,4\}\) हैं, तो (\(A\cap B\)\times C) में कौन सा युग्म होगा?
If \(A=\{1,2\}\), \(B=\{2,3\}\) and \(C=\{3,4\}\), which pair belongs to (\(A\cap B\)\times C)?
Explanation opens after your attempt
Correct Answer
A. ((2,4))
Concept
\(A\cap B={2}\), so the first component can only be (2) and the second must be from (C). Hence ((2,4)) is correct.
Why this answer is correct
The correct answer is A. ((2,4)). \(A\cap B={2}\), so the first component can only be (2) and the second must be from (C). Hence ((2,4)) is correct.
Exam Tip
\(A\cap B={2}\), इसलिए पहला घटक केवल (2) हो सकता है और दूसरा (C) से होगा। इसलिए ((2,4)) सही है।
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