Question 413290: What is 4C4?
Answer by kamallohia(18)   (Show Source):
You can put this solution on YOUR website! C(4, 4) = 1.
Actually C(n, r) is the number of ways in which you can select r different things out of available n different things. As there is only one way to select 4 different things out of 4 different things available, that's why C(4, 4) = 1.
Remember that order doesn't matter in selection.
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