Combinatorics and Graph Theory · Problem 3.1.2

Generating Functions — David Guichard

Mathematics — Combinatorics · newtons-binomial-theorem

Problem

Show that the Maclaurin series for (x+1)r(x + 1)^r is ∑i=0∞(ri)xi\sum_{i=0}^{\infty} \binom{r}{i} x^i.

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