Math 2.0

Combinatorics Basic counting Concept

Binomial coefficient

Summary

The binomial coefficient (nk)\binom{n}{k} is the number of ways to choose kk elements from an nn-element set. These numbers are the coefficients in the expansion of (x+y)n(x + y)^n. The node binomial coefficient gives the precise definition.

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Further reading

  1. Web https://en.wikipedia.org/wiki/Binomial_coefficient, Definition and interpretations
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