Posted by **Kathryn** on Thursday, May 15, 2008 at 9:05pm.

i don't know how to work these problems out so i'll just pick a random one out from my home work and if someone could explain it to me step by step that would be very helpful.

Solve the tragicomic expression for all answers between 0 degrees and 360 degrees

2cos^2x-3cosx=2 where x is theta

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