Prove that the series starting with has its maximum at , therefore afterwords it strictly decreasing. (I know that .)

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- January 26th 2009, 11:36 AM #1

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- January 26th 2009, 11:40 AM #2

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- January 26th 2009, 11:41 AM #3

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- January 26th 2009, 11:50 AM #4

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- January 26th 2009, 11:54 AM #5

- January 26th 2009, 11:56 AM #6

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- January 26th 2009, 11:59 AM #7