यदि \(A=\{1,2,3\}\) और \(B=\{a\}\) हैं, तो (A) से (B) तक कुल संबंधों की संख्या कितनी है?
If \(A=\{1,2,3\}\) and \(B=\{a\}\), how many relations are possible from (A) to (B)?
Explanation opens after your attempt
Correct Answer
A. (8)
Concept
(n\(A\times B\)=3\times1=3), so the number of subsets is \(2^3=8\). For counting relations, remember \(2^{n(A\times B)}\).
Why this answer is correct
The correct answer is A. (8). (n\(A\times B\)=3\times1=3), so the number of subsets is \(2^3=8\). For counting relations, remember \(2^{n(A\times B)}\).
Exam Tip
(n\(A\times B\)=3\times1=3), इसलिए उपसमुच्चयों की संख्या \(2^3=8\) है। संबंध गिनने में \(2^{n(A\times B)}\) याद रखें।
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