Product of Binomial Coefficients

Rarely Tested

Product of Binomial Coefficients

## Formula

$${}^nC_r{}^rC_s={}^nC_s{}^{n-s}C_{r-s}$$

for:

$$0\le s\le r\le n$$

## Usage

- Used to simplify products involving multiple binomial coefficients.

No related questions available for this formula yet.

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