Find the sum of each of the following series . (1) (2)
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Last edited by mr fantastic; Feb 9th 2009 at 02:36 AM. Reason: Corrected first formula ..... replaced r with n on the right hand side.
Originally Posted by thereddevils Find the sum of each of the following series . (1) (2) Adding to what ADARSH said: For (1), note that 1. . 2. (you should also expand the summand in (2) as well).
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