Hey all,

I am stuck on trying to prove $\displaystyle 2^n = \sum_{r=0}^r \begin{pmatrix} n\\ r \end{pmatrix} $ using the Binomial Theorem, any ideas ? Thanks

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- May 29th 2011, 04:09 PMOilerProof using Binomial Theorem
Hey all,

I am stuck on trying to prove $\displaystyle 2^n = \sum_{r=0}^r \begin{pmatrix} n\\ r \end{pmatrix} $ using the Binomial Theorem, any ideas ? Thanks - May 29th 2011, 04:15 PMAlso sprach Zarathustra
- May 29th 2011, 04:22 PMPlato