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April 21, 2014

April 21, 2014

Posted by **John** on Sunday, May 23, 2010 at 4:01am.

- calculus/Trig -
**drwls**, Sunday, May 23, 2010 at 6:50amsin(3t) = sin(2t)cos t + sint cos(2t)

= [2sint*cos^2t + sint(cos^2t - sin^2t)

= 3sint*cos^2t -sin^3t

You can get rid of the cosine function.

= 3sint(1 - sin^2t)- sin^3t

= 3sint -4 sin^3t

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