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April 20, 2014

April 20, 2014

Posted by **sasa** on Friday, February 15, 2013 at 12:22am.

- Math -
**Reiny**, Friday, February 15, 2013 at 12:44amA = P + Pnr

A-P = Pnr

(A-P)/(Pn) = r

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