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August 31st, 2010, 12:21 PM   #1
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how do I simplify this



How do I simplify this to find the type of series? but I know this series is convergent.
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August 31st, 2010, 12:49 PM   #2
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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.
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August 31st, 2010, 01:37 PM   #3
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It's already a (convergent) geometric series, since there is a common ratio of 4/7.
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