If `n(A)=5, n(B)=2`, then find the number of relations from A to B

If A and B are finite sets such that n(A)=5 and n(B)=7,then find the number of functions from A to B.

If A and B are finite sets such that n(A)=m and n(B)=k ,find the number of relations from A to B .is equal to-

If A={a,y} and B={2,5} , then find the number of relations from set A to B.

Given n(A)=3,n(B)=2, and the number of relations from A to B is x ,then x-60 is

If n(A) = p and n(B) = q , then the number of relations from set A to set B = ________.

Statement-1: Number of permutations of 'n' dissimilar things taken 'n' at a time is n!. Statement-2: If n(A)=n(B)=n, then the total number of functions from A to B are n!.

If A and B are two sets with n(A)=4 and n(B)=2 then the number of onto functions from A to B is

If n(A)=6 and n(B)=3, then find the number of subsets of A xx B .

Let n(A)=3 and n(B)=5 , then the number of one - one functions from A to B is