Timeline for How to prove Vandermonde's Identity: $\sum_{k=0}^{n}\binom{R}{k}\binom{M}{n-k}=\binom{R+M}{n}$?
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| Apr 13, 2017 at 12:21 | history | edited | CommunityBot |
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| Jun 12, 2015 at 7:29 | history | answered | Did | CC BY-SA 3.0 |