SOLUTION: solve for x: cos x - cos ² x = 0

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Question 306032: solve for x: cos x - cos ² x = 0
Found 2 solutions by themathtutor2009, Alan3354:
Answer by themathtutor2009(81) About Me  (Show Source):
You can put this solution on YOUR website!
cos x - cos ² x = 0

cos x(1-cos x) = 0

cos x = 0 or 1-cos x = 0

cos x = 0 or cos x = 1

x = pi/2+pi*n or x = 2pi*n

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve for x: cos x - cos ² x = 0
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cos(x)*(1-cos(x)) = 0
cos(x) = 0
x = pi/2 + n*pi, n = 0,1,2,3.....
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cos(x) = 1
x = 0 + 2n*pi, n = 0,1,2,3...