If n(A) = n(B) = m, then the number of possible bijections from A to B is

Question

If n(A) = n(B) = m, then the number of possible bijections from A to B is (A) m (B) m2 (C) m ! (D) 2 m

Tardigrade Admin · Accepted Answer

We know that total number of one-one onto functions from A to B is m!

Q. If $n (A) = n (B) = m,$ then the number of possible bijections from $A$ to $B$ is