How can I expand $(1 - x)^{-5}$ ?
There are different approaches given, but I am not getting exactly.
2026-04-03 07:27:24.1775201244
How to expand $(1 - x)^{-5}$?
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Binomial series to expand $(1-x)^{-5}$. $$\frac{1}{(1-z)^{\beta+1}} = \sum_{k=0}^{\infty}{k+\beta \choose k}z^k.$$