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OpenStudy (linda):
3cos2theta-4cos^2theta+2=0. solve
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OpenStudy (anonymous):
hey im pretty sure i got this one. you're just solving for x using identities, right?
OpenStudy (linda):
we r using substitutions to solve for diff. angle measures
OpenStudy (anonymous):
what do you mean by substitutions? i just used identites, which could be the same thing. i'm in trig now, so you might just be ahead of us. by i solved it...
OpenStudy (anonymous):
*but i solved it. do you want me to just go through what i did and see if thats what you're supposed to be doing?
OpenStudy (anonymous):
is it \[3\cos(2\theta)-4\cos^2(\theta) +2 =0 ?\]
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