यदि \(A=\{1,2\}\) और \(B=\{2,3\}\), \(R=\{(a,b):a\le b\}\) है, तो (R) में कुल कितने युग्म हैं?
If \(A=\{1,2\}\), \(B=\{2,3\}\), and \(R=\{(a,b):a\le b\}\), how many pairs are in (R)?
Explanation opens after your attempt
C. (4)
Concept
All possible pairs ((1,2),(1,3),(2,2),(2,3)) satisfy \(a\le b\). Therefore there are (4) pairs.
Why this answer is correct
The correct answer is C. (4). All possible pairs ((1,2),(1,3),(2,2),(2,3)) satisfy \(a\le b\). Therefore there are (4) pairs.
Exam Tip
सभी संभावित युग्म ((1,2),(1,3),(2,2),(2,3)) शर्त \(a\le b\) पूरी करते हैं। इसलिए कुल (4) युग्म हैं।
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