[" 2.Let "A={1,2,3,...n}" and "B={a,b}" ...

[" 2.Let "A={1,2,3,...n}" and "B={a,b}" .Then the number of surjections from "A" into "B" is "],[[" (a) "^(n)P_(2)," (b) "2^(n)-2],[" (c) "2^(n)-1," (d) None of these "]]

Similar Questions

Explore conceptually related problems

Let A = {1, 2, 3, …..., n} and B = {a, b}. Then the number of surjection from A into B is

If A={1,2,3,.....n],nge2 and B={a,b} , then the number of surjections from A to B is

Let A = {1,2,3,…,n} and B = {x,y}. Then the number of surjections from B into A is

Let A={1,2,..., n} and B={a , b }. Then number of subjections from A into B is

If A= {1,2,3...,n} and B ={ a,b} Then , the number of subjection from A into B is .........

Let A = {1, 2, 3, 4} and B = {1, 2} . Then the number of onto functions from A onto B is

If B={1,2,3} and A={4,5,6,7,8} then the number of surjections from A to B is

If A={1,2,3) and B={a,b} , then the number of functions from A to B is

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