Question:
If A = {1,2} and B = {3,4}. Then find the number of relations between A and B.
Answer:
Here, no of elements in A is n(A) = 2 and no of elements in B is n(B) = 2.
Number of relations from A to B = 2n(A) x n(B)
= 22x2
= 24
= 16
Therefore, the number of relations from A to B are 16.
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