Find the area between the curves y=4cosx and y = 4cos(2x) [0, pi]
The Attempt at a Solution
I know I need to integrate this, but I get hung up finding the intersection of the two lines so I can split it into two different areas.
4cosx = 4 cos(2x)
0 = cos(2x) - cos(x) I think I need to use a trig identity here, but I'm not sure.
0 = sin(2x)sin(x)