If n(A) = 5 and n(B) = 7, then the number of relations on A × B is -Maths 9th

If n(A) = 5 and n(B) = 7, then the number of relations on A × B is -Maths 9th
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Answer :

(b) 235n(A) = 5 and n(B) = 7 ∴ n(A × B) = 5 × 7 = 35 Total number of relations from A to B = Total number of subsets of (A × B) = 235.
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