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October 21, 2014

October 21, 2014

Posted by **Anonymous** on Sunday, February 17, 2013 at 8:59pm.

- trig -
**Reiny**, Sunday, February 17, 2013 at 11:46pmcos^(2) 20 degrees + sin^(2) 20 degrees +pi/2

= (cos^(2) 20 degrees + sin^(2) 20 degrees) +pi/2

= 1 + π/2

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