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OpenStudy (anonymous):
Find all the solutions to cos^2x+sin^2x=2cos x for the interval of 0 degrees is less than or equal to x which is less than 360 degrees
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OpenStudy (anonymous):
cos^2(x)+sin^2(x) = 1 so 1=2 cosx cos x = 1/2 find x from 0 to 2pi
OpenStudy (anonymous):
Thank you so much!!!
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