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October 21, 2014

October 21, 2014

Posted by **o** on Friday, July 19, 2013 at 9:31pm.

- math -
**Steve**, Saturday, July 20, 2013 at 4:47amMust be a typo, since if n=3,

-1/2^3 = -1/8

1/2^3 - 1 = -7/8

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