SOLUTION: Evaluate 9C6 84 6 720 432

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Question 469656: Evaluate 9C6
84
6
720
432
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

nCx = n%21%2F%28x%21%28n-x%29%21%29

9C6 = 9!/6!3! = 9*8*7/2*3 = 84