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April 17, 2014

April 17, 2014

Posted by **prasenit** on Friday, June 28, 2013 at 11:35pm.

- math -
**Kuai**, Saturday, June 29, 2013 at 1:19amHint

(sinA +cosA) = sqrt(cosA)

sinA +cosA)^2 = (sqrt(cosA)^2

(sinA + cosA)(sinA+cosA) = cosA

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