यदि \(A=\{2,3,4\}\), \(B=\{5,6,7\}\) हैं, तो \(A\times B\) में ((3,6)), ((5,6)), ((4,7)) में से कौन सा युग्म नहीं है?
If \(A=\{2,3,4\}\), \(B=\{5,6,7\}\), which among ((3,6)), ((5,6)), and ((4,7)) is not in \(A\times B\)?
Explanation opens after your attempt
Correct Answer
B. ((5,6))
Concept
In ((5,6)), the first component (5) is not in (A). Check both positions separately for membership.
Why this answer is correct
The correct answer is B. ((5,6)). In ((5,6)), the first component (5) is not in (A). Check both positions separately for membership.
Exam Tip
((5,6)) में पहला अवयव (5) है, जो (A) में नहीं है। सदस्यता में दोनों स्थान अलग-अलग जाँचें।
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