Question: Write a recursive method called that accepts two integers and as parameters and returns the number of unique permutations of given values of and as

Write a recursive method called that accepts two
integers and as parameters and returns the number of
unique permutations of given values of and
as follows:
For example,
helpful to note that
items from a group of items. For this value () can be computed
should return 840. It may be returns 120, or 840/7

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