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November 21, 2014

November 21, 2014

Posted by **Trig** on Thursday, November 13, 2008 at 9:16pm.

2sin(x)^2 = 2 + cos(x)

- Trig -
**bobpursley**, Thursday, November 13, 2008 at 9:25pmI assume you meant (sin(X))^2

change the sin squared to 1-cos squared, then group the terms as in a quadratic, and solve with the quadratic equation.

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