यदि \(A=\{0,1,2,3\}\) और \(B=\{0,1,4,9\}\) है, तो \(A\times B\) में ऐसे कितने युग्म ((x,y)) हैं जिनके लिए \(y=x^2\) है?
If \(A=\{0,1,2,3\}\) and \(B=\{0,1,4,9\}\), how many pairs ((x,y)) in \(A\times B\) satisfy \(y=x^2\)?
Explanation opens after your attempt
C. (4)
Concept
For (x=0,1,2,3), (y=0,1,4,9), all in (B). Hence there are (4) pairs.
Why this answer is correct
The correct answer is C. (4). For (x=0,1,2,3), (y=0,1,4,9), all in (B). Hence there are (4) pairs.
Exam Tip
(x=0,1,2,3) पर (y=0,1,4,9) मिलते हैं और सभी (B) में हैं। इसलिए कुल (4) युग्म हैं।
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