Question: Write a source code in Haskell to compute the permutations and combinations of n things taken k at a time. [Note: You need to first

Write a source code in Haskell to compute the permutations and combinations of n things taken k at a time. [Note: You need to first write a program for factorial computation and have multiple function calls to the factorial function] nPk=(nk)!n!nCk=k!(nk)!n
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