hey, i need to simplify this, and im having a brain fart ...can u help me?(adsbygoogle = window.adsbygoogle || []).push({});

f(x)= cosx(3cos3x) + (sin3x)(-sinx)

i then have to find f(pi/6), but im hoping i can do that once this is simplified...

thanks

Gill

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# Homework Help: Stupid brain cramp

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