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January 29, 2015

January 29, 2015

Posted by **Jessica** on Wednesday, August 4, 2010 at 5:43pm.

- Alegbra -
**bobpursley**, Wednesday, August 4, 2010 at 5:55pmIsn't the sum equal to

ar/(1-r) ?

http://en.wikipedia.org/wiki/Geometric_progression

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