Question 1089759
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First of all, you have the answers backwards.  12 choose 4 is 495 and 11 choose 3 is 165.


12 choose 4:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{12!}{4!(12-4)!}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{12\times11\times10\times9\times8\times7\times6\times5\times4\times3\times2}{(4\times3\times2)(8\times7\times6\times5\times4\times3\times2)]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{12\times11\times10\times9}{4\times3\times2}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 11\times5\times9\ =\ 495]


You can figure the other one on your own.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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