SOLUTION: Evaluate: 4C0

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Question 317258: Evaluate: 4C0
Found 2 solutions by rfer, jrfrunner:
Answer by rfer(12666) About Me  (Show Source):
Answer by jrfrunner(365) About Me  (Show Source):
You can put this solution on YOUR website!
nCr is a notation for combination of r items selected from a sample of n things.
nCr= +n%21%2Fr%21%28n-r%29%21
when r=0 nC0 = n%21%2F0%21%28n-0%29%21 = n%21%2Fn%21 =1 since 0! is defined as 1
so this is true for any "n" nC0=1