SOLUTION: solve the equation for solutions in the interval [0, 2 pie): 2 cos squared x=3/2

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Question 918943: solve the equation for solutions in the interval [0, 2 pie): 2 cos squared x=3/2
Answer by lwsshak3(11628) About Me  (Show Source):
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solve the equation for solutions in the interval [0, 2 pie): 2 cos squared x=3/2
2cos^2x=3/2
cos^2x=3/4
cosx=√3/2
x=π/6, 5π/6, 7π/6, 11π/6