I want to compute the expression efficiently ,How do I simplify it? $$\sum_{i=0}^x \frac{k!}{(u+i)!i!(r+x-i)!(x-i)!}$$ given $u,r,x,k$. Given relation $k=u+r+2*x $
2026-04-08 02:26:34.1775615194
How Do I compute this expression efficiently
43 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in SUMMATION
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