Hi guys I recently ran into a problem after doing an integral, I'm left with I know that I would be left with on the numerator. But in the denominator. I'm not sure how the factorials would cancel. Any help is appreciated
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$\dfrac{n!}{(n-k)!} = \underbrace{n(n-1)\cdots (n-k+1)}_{k\text{ terms}}$ Can you use the Pochhammer rising factorial?
Are you given that and k are integers? That is the only way a gamma function can be written as a factorial.
Hi guys thanks for your replies yep I'm told for positive integer values such that