Question: Consider each expression in the form nPr and nCr. a. What is the relationship between 7P2 and 7C2? b. What is the relationship between 7P3

Consider each expression in the form nPr and nCr.
a. What is the relationship between 7P2 and 7C2?
b. What is the relationship between 7P3 and 7C3?
c. What is the relationship between 7P4 and 7C4?
d. What is the relationship between 7P7 and 7C7?
e. Describe how you can find nCr if you know nPr.

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