SOLUTION: use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1

Algebra ->  Trigonometry-basics -> SOLUTION: use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1      Log On


   

Question 870251: use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1