Let a = {1,2,3} and b = {a,b,c,d}, number of relations that can be defined from set a to set b is
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Set A and set B are disjoint sets
sahashreyan51:
The total number of relations that can be defined from a set A to a set B is the number of possible subsets of A × B. If n(A) = p and n(B) = q, then n(A × B) = pq and the total number of relations is 2^pq. Let A = {a, b} and B = {c, d}. So answer is 2^(3*4)= 2^12
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