यदि \(A=\{0,1,2,3\}\) और \(B=\{0,1,4,9\}\), तो \(A\times B\) में \(b=a^2\) वाले युग्मों की संख्या कितनी है?
If \(A=\{0,1,2,3\}\) and \(B=\{0,1,4,9\}\), how many pairs in \(A\times B\) satisfy \(b=a^2\)?
Explanation opens after your attempt
C. (4)
Concept
For (a=0,1,2,3), (b=0,1,4,9), all of which are in (B). Hence (4) pairs are obtained.
Why this answer is correct
The correct answer is C. (4). For (a=0,1,2,3), (b=0,1,4,9), all of which are in (B). Hence (4) pairs are obtained.
Exam Tip
(a=0,1,2,3) पर (b=0,1,4,9) सभी (B) में हैं। इसलिए (4) युग्म मिलते हैं।
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