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February 28, 2015

February 28, 2015

Posted by **Kate** on Sunday, July 17, 2011 at 6:10pm.

sin x=2/3.

- Math -
**Damon**, Sunday, July 17, 2011 at 6:29pmsin is positive in quadrants 1 and 2

sin^-1 2/3 = 41.8 deg

and

180-41.8 = 138.2 deg

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