Homework Help: trig

Posted by Steve on Wednesday, December 16, 2009 at 9:46pm.

Rewrite 8 cos2 x as an equivalent expression that does not contain powers of trigonometric functions greater than 1

trig - bobpursley, Wednesday, December 16, 2009 at 9:49pm
cos^2 x= cosX * CosX

Surely you are looking for something more complex than that.

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