Question: Evaluate the following expressions: a) nPr and nCr; n =k, r = 1. b) nPr and nCr; n = k, r = 2. c)

Evaluate the following expressions: a) nPr and nCr; n =k, r = 1. b) nPr and nCr; n =k, r = 2. c) Compare the  

Evaluate the following expressions: a) nPr and nCr; n =k, r = 1. b) nPr and nCr; n = k, r = 2. c) Compare the results and explain why so.

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