All work will be done in Python. It's important that this is
kept in mind. I will follow up on this question and will give
a thumbs up once the question is correctly answered in Python.
2. Show that the identity (cos x)2 = (1 + cos(2x)) holds for the following values of x: TT a) x = 6 b) x=1.25
c) Since this is an identity, f(x) = (cos x)2 (1 + cos(2x)) should be zero for all x. Plot f on the domain x e [0, 2r]. If you do not get the line y = 0, explain why (hint: look at the y-axis scale).