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January 31, 2015

January 31, 2015

Posted by **Bianca** on Monday, July 8, 2013 at 3:28pm.

- Math -
**Bosnian**, Monday, July 8, 2013 at 8:06pmsin ( 2 x ) = 2 sin x cos x

sin ( 2 x ) + cos x =

cos x ( 2 sin x + 1 )

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