Question

Diketahui A = {2,3,5,7} dan B = {z,y,z} Maka n(f: A->B) =

Answer 1

A = {2,3,5,7} , n(A) = 4
B = {z,y,z}, n(B) = 3
n(f: A->B) = (n(B))^(n(A))
               =3^4
               = 81