Trig
posted by Ted .
cos2x(2cosx+1)=0
Solve for x.

Please.

(2cos^2x1)(2cosx+1)=0
^
[Double angle identity]
Now I'm stuck. 
hey ted did you ever figure that out because if so tell me tell me now plz i need this very much
posted by Ted .
cos2x(2cosx+1)=0
Solve for x.
Please.
(2cos^2x1)(2cosx+1)=0
^
[Double angle identity]
Now I'm stuck.
hey ted did you ever figure that out because if so tell me tell me now plz i need this very much