Question: Consider sets A and B, with |A| = 7 and |B| = 3 How many injective functions are there from A to B How many

Consider sets A and B, with |A| = 7 and |B| = 3

How many injective functions are there from A to B

How many surjective functions are there from A to B

Now, Consider sets A and B, with |A| = 3 and |B| = 7

How many injective functions are there from A to B

How many surjective functions are there from A to B

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