If `n(A) =15` and `n(B) =10,` then the number of injective (one-one), mapping from `A` into `B` is

If A and B are two sets such that n(A)=5 and n(B) = 6, then the number of one-one and onto mapping from A to B is

Let n(A)=5 and n(B)=3 then find the number of injective functions and onto functions from A to B

Let n(A) = m and n(B) = n, then the number of non-empty relations from A to B is

If A={a,b,c} and B={-3,-1,0,1,3} , then the number of injections that can be defined from A to B is .

If the set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is

If n(A) = 3 and n(B) =5 , then maximum number of elements in A cap B is :

If the set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is 720 (b) 120 (c) 0 (d) none of these

If the set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is (a) 720 (b) 120 (c) 0 (d) none of these

If the set A contains 7 elements and the set B contains 10 elements, then the number of one-one functions from A to B is

If n(A) = 4 and n(B) =6 , then maximum number of elements in A cup B is :