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7.4: Summary

( \newcommand{\kernel}{\mathrm{null}\,}\)

  • If n>0 is an integer, then

\binom{−n}{r} = (−1)^r \binom{n + r − 1}{r}.

  • The Generalised Binomial Theorem
  • 1 + x + . . . + x^k = \dfrac{(1 − x^{k+1})}{(1 − x)}
  • Using generating functions for counting things
  • Important Definitions:
    • Generating function for a sequence
    • Generalised binomial coefficient

This page titled 7.4: Summary is shared under a CC BY-NC-SA license and was authored, remixed, and/or curated by Joy Morris.

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