SOLUTION: find all solutions in the interval[0,2pi] to the equation cos^2 x=1

SOLUTION: find all solutions in the interval[0,2pi] to the equation cos^2 x=1

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Question 84049: find all solutions in the interval[0,2pi] to the equation cos^2 x=1
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
Realistically, we can conclude that there will be no negative values for when cos = -x .. cos = -x ~> -x * -x = +x^2
So whenever cos(x) = +- 1 ...
-2 , - , , , 2

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