यदि \(A=\{1,2,3\}\) और \(B=\{1,2,3\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x<y)?
If \(A=\{1,2,3\}\) and \(B=\{1,2,3\}\), how many pairs ((x,y)) in \(A\times B\) satisfy (x<y)?
Explanation opens after your attempt
Correct Answer
A. (3)
Concept
The correct pairs are ((1,2),(1,3),(2,3)). Count only after applying the condition.
Why this answer is correct
The correct answer is A. (3). The correct pairs are ((1,2),(1,3),(2,3)). Count only after applying the condition.
Exam Tip
सही युग्म ((1,2),(1,3),(2,3)) हैं। शर्त लगाने के बाद ही गिनती करें।
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