How do you graph #cos^2 (x)#?
1 Answer
Oct 24, 2017
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Explanation:
Note that:
#cos 2x = 2cos^2 x - 1#
So:
#cos^2 x = 1/2(cos 2x+1)#
So this will be a sinusoid like
graph{(cos(x))^2 [-5, 5, -2.5, 2.5]}