यदि \(A=\{2,4,6\}\) और \(B=\{1,2,3\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x=2y)?
If \(A=\{2,4,6\}\) and \(B=\{1,2,3\}\), how many pairs ((x,y)) in \(A\times B\) satisfy (x=2y)?
Explanation opens after your attempt
A. (3)
Concept
The correct pairs are ((2,1),(4,2),(6,3)). Apply the condition to every possible pair.
Why this answer is correct
The correct answer is A. (3). The correct pairs are ((2,1),(4,2),(6,3)). Apply the condition to every possible pair.
Exam Tip
सही युग्म ((2,1),(4,2),(6,3)) हैं। शर्त को हर संभव युग्म पर लागू करें।
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