Binomial coefficients are defined:

I'm not sure how two write these out going from . For I have:

For

I know this should equal , but I don't know how to show that.

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- February 1st 2010, 02:23 PMadkinsjrBinomial Coefficients
Binomial coefficients are defined:

I'm not sure how two write these out going from . For I have:

For

I know this should equal , but I don't know how to show that. - February 1st 2010, 02:25 PMDrexel28
- February 1st 2010, 06:24 PMadkinsjr
Ok, I wasn't aware of the formal definition of a factorial: