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Answer Happy • Solve the equation for exact solutions over the interval [0, 2π). -2 cos²x = - - cos x - 1
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Solve the equation for exact solutions over the interval [0, 2π). -2 cos²x = - - cos x - 1

Posted: Fri Jul 08, 2022 5:40 am
by answerhappygod
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Solve the equation for exact solutions over the interval [0, 2π). -2 cos²x = - - cos x - 1