zzzz1 04:30 $(a+b)^n = \sum\limits_{k=0}^n C_n^k a^{n-k} b^k$ $(a+b)^n = \sum\limits_{k=0}^n C_n^k a^{n-k} b^k$ Share on Facebook Share on Twitter Share on Google Plus About zzzz1 This is a short description in the author block about the author. You edit it by entering text in the "Biographical Info" field in the user admin panel. RELATED POSTS
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