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OpenStudy (anonymous):
PLEASEEEE. Solve the equation 2cosx - 1 = 0 for all values of x in the interval 0 degrees less than or equal to x less than 360 degrees
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OpenStudy (anonymous):
cosx = 1/2 => x = 60 + 2K * 180 Thus x = 60
OpenStudy (anonymous):
thank you so much
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