यदि \(A=\{1,2,3,4\}\) और \(B=\{1,2,3\}\) हैं, तो \(A\times B\) में कितने युग्म ((a,b)) ऐसे हैं जिनमें (a>b) है?
If \(A=\{1,2,3,4\}\) and \(B=\{1,2,3\}\), how many pairs ((a,b)) in \(A\times B\) have (a>b)?
Explanation opens after your attempt
B. (6)
Concept
For (a=2,3,4), the counts are (1,2,3), giving (6). For inequalities, count using the first component.
Why this answer is correct
The correct answer is B. (6). For (a=2,3,4), the counts are (1,2,3), giving (6). For inequalities, count using the first component.
Exam Tip
(a=2,3,4) के लिए क्रमशः (1,2,3) मान मिलते हैं, कुल (6)। असमानता में पहले अवयव को आधार बनाकर गिनें।
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