SOLUTION: what is the solution of the equation 2cos^2X=1 on the interval [0, 360 degrees]

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Question 874516: what is the solution of the equation 2cos^2X=1 on the interval [0, 360 degrees]
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
what is the solution of the equation 2cos^2X=1 on the interval [0, 360 degrees]
2cos%5E2%28x%29=1
cos%5E2%28x%29=1%2F2
cos(x)=±√(1/2)=±√2/2
x=45˚, 135˚, 225˚, 315˚