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 August 31st, 2010, 12:21 PM #1 Newbie   Joined: Aug 2009 Posts: 29 Thanks: 0 how do I simplify this How do I simplify this to find the type of series? but I know this series is convergent.
 August 31st, 2010, 12:49 PM #2 Global Moderator   Joined: May 2007 Posts: 6,703 Thanks: 669 Re: how do i simplify this Factor out 112 (7x4x4) and you will have a geometric series ?(4/7)^k = 4/3, so the final result is 448/3.
 August 31st, 2010, 01:37 PM #3 Global Moderator   Joined: Dec 2006 Posts: 20,370 Thanks: 2007 It's already a (convergent) geometric series, since there is a common ratio of 4/7.

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