Let A and B be two finite sets having m and n elements respectively. Then the total number of mappings from A to B is

If A and B are two finite sets having m and n elements respectively, then the total number of mapping from A to B is…

Let A and B be two sets having m and n elements respectively . Then total number of functions from A to B is

Let A and B be two finite sets having m and n elements respectively. If mlen , the total number of injective functions from A to B is :

Let A and B be two sets containing 8 and 2 elements respectively then the total number of surjective mapping from A to B is

Let "A" and "B" be two finite sets with "m" and "n" elements respectively.The total number of subsets of the set "A" is "56" more than the total number of subsets of "B" .Then the distance of the point "P(m,n)], from the point "Q(-2,-3)" is :

Let A and B be two finite sets having m and n elements respectively such that m le n . A mapping is selected at random from the set of all mappings from A to B. The probability that the mapping selected is an injection, is