Let `A ={a,b,c} and B={p,q,r,},` defined three one-one and onto mappings from A to B and also find their inverse mappings

The number of one-one and onto mapping from A to B, where n(A)=6andn(B)=7 is :

the number of one - one and onto mapping from A to B where n (A) = 6 and n (B ) = 7 is :

If A = {1, 2, 3,4} and B = {x, y, z, w} , then a) Number of mappings from A to B b) Number of one-one mappings from A to B c) Number of onto mappings from A to B d) Number of constant mappings from A to B.

Let A ={a,b}, write all one-one mappings from A to itself.

If A={a, b, c, d} and B={x, y, z} , then which one of the following relations from A to B is not a mapping?

If a set A contain 7 elements and the set B contain 9 elements, then the number of one-one and onto , mappings 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)=15 and n(B)=10 , then number of injective (one-one) mapping from A into B is