Can anyone prove the binomial expansion:

$\displaystyle (x+y)^n$ = $\displaystyle \sum$ $\displaystyle \left(\begin{array}{c}n\\r\end{array}\right)$ $\displaystyle x^r.y^{n-r}$

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- Jul 31st 2009, 03:30 PMgtaplayrBinomial expansion
Can anyone prove the binomial expansion:

$\displaystyle (x+y)^n$ = $\displaystyle \sum$ $\displaystyle \left(\begin{array}{c}n\\r\end{array}\right)$ $\displaystyle x^r.y^{n-r}$ - Jul 31st 2009, 03:52 PMJhevon
this is certainly something that can be found all over the internet. see here

- Jul 31st 2009, 11:01 PMCaptainBlack