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Solve the equation on the interval zero is less than or equal to theta is less than two pie, 2 cos (theta) + 3=2

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asked Mar 29, 2018 in PRECALCULUS by anonymous

1 Answer

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0<=theta<2pi

2 cos (theta) + 3=2

2 cos (theta)=-1

cos (theta)=-1/2

θ = 2pi/3 and 4pi/3

answered Mar 30, 2018 by johnkelly Apprentice

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