Quote:
Originally posted by KnifeMissle
Well, you should know the trigonometric identity, sin(2x) = 2 * sin(x) * cos(x).
This should be enough for you to solve the problem, yourself...
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Hey Hey, look at that!
Thanks.
And yeah, I SHOULD know the identity, but havn't had trig in years. (I'm actually in calc, rotating regions around a line and taking the integral to find the volume of da' soild)
fun fun