Let A and B be two sets with
Chapter 8, Problem 7(choose chapter or problem)
Let A and B be two sets with |A| = 5 and |B| = 6. (a) How many different functions from A to B are there? (b) How many different functions from B to A are there? (c) How many different one-to-one functions from A to B are there? (d) How many different one-to-one functions from B to A are there?
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