If , show that

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- August 11th 2010, 07:33 AMVandermondeAn Equality of Binomial SumsIf , show that

- August 13th 2010, 01:53 PMawkward
- August 16th 2010, 12:25 AMVlasev
The first one seems to the the odd one out. The last two evaluate to the same closed form expression. I suppose there is a typo in the first sum.