Question 1161683
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25 choose 2 times 6 choose 2 times 4 choose 2 times 2 choose 2:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  {{25}\choose{2}}{{6}\choose{2}}{{4}\choose{2}}{{2}\choose{2}}]


Just do the arithmetic
								
								
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 \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}
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