Question 616599
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Presuming you mean the permutations of 12 things taken 3 at a time:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{12!}{(12\,-\,3)!}\ =\ \frac{12!}{9!}\ =\ \frac{12\ \times\ 11\ \times\ 10\ \times\ 9!}{9!}\ =\ 12\ \times\ 11\ \times\ 10]


You 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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