Question 1161854
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 15!\ =\ 15\ \times\ 14\ \times\ 13\ \times\ 12\ \times\ 11!], and


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4!\ =\ 4\ \times\ 3\ \times\ 2]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{15!}{11!\,\cdot\,4!}\ =\ \frac{15\ \times\ 14\ \times\ 13\ \times\ 12}{4\ \times\ 3\ \times\ 2}\  =\ \ 15\ \times\ 7\ \times\ 13]


You can do the rest of the arithmetic.
								
								
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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