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December 18, 2014

December 18, 2014

Posted by **jenna** on Wednesday, May 16, 2012 at 9:23pm.

- trig -
**Count Iblis**, Wednesday, May 16, 2012 at 10:15pmCos^2(x) - Sin^2(x) = Cos(2 x)

So, you can write the expression as

cos(8 theta)

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