SOLUTION: Cos^2x=cosx
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Question 1062187: Cos^2x=cosx
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Cos^2x=cosx
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cos^2 - cos = 0
cos*(1 - cos) = 0
cos = 0
cos = 1
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x = 0
x = pi/2
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