Let 'A={1,2,3,.....n}' and 'B={a,b,c}' , the number of functions from A to B that are onto is

Let A = {1,2,3} and B = {a,b,c}. If l is the number of functions from A to B and m is number of one-one functions from A to B, then (A) l is 9 (B) m is 9 (C) l is 27 (D) m is 16

Let A={1,2,3} and B ={a,b} what is the number of non empty relations from A to B

If A={1,2,3},B={1,2} then the number of functions from A to B are

If P = {1,2,3,4,5} and Q = {a,b,c}, then the number of onto functions from P to Q is

If A={1,2,3,4} and B={-1,3} , then what is the number of onto functions from A to B?

Let A={1,2,..., n} and B={a , b }. Then number of surjections from A into B is nP2 (b) 2^n-2 (c) 2^n-1 (d) nC2

Let E = {1, 2, 3, 4} and F = {1, 2}. Then the number of onto functions from E to F is