## anonymous 5 years ago 3cos2theta-4cos^2theta+2=0. solve

1. anonymous

hey im pretty sure i got this one. you're just solving for x using identities, right?

2. anonymous

we r using substitutions to solve for diff. angle measures

3. 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...

4. 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?

5. anonymous

is it $3\cos(2\theta)-4\cos^2(\theta) +2 =0 ?$