Question 361724
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You need:


*[tex \LARGE \left(n\cr k\right\)] which is the number of combinations of *[tex \Large n] things taken *[tex \Large k] at a time and is calculated by *[tex \Large \frac{n!}{k!(n\,-\,k)!}]


Specifically: *[tex \LARGE \left(5\cr 3\right\)\ =\ \frac{5!}{3!(5\,-\,3)!}]. You get to do your own arithmetic.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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