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Find all solutions in the interval [0,2pi): 4sin^2x=1

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1 Answer

sin^2x = 1/4
sin x = 1/2, x = pi/6, 5pi/6
or
sin x = -1/2, x = 7pi/6, 11pi/6
Answer: x = pi/6, 5pi, 7pi.6, 11pi/6.