Monday, 22 August 2016

proof writing - Sum of Binomial Coefficients?

Question: Trying to find a proof of the following equation.




For any m,nN0,
mk=0(n+kk)=(n+m+1m).



I know that Vandermonde's identity might be useful but not sure where to start.

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real analysis - How to find limhrightarrow0fracsin(ha)h

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