TrigonometryEasyTrigonometric Equations ShareTrigonometric Equations · Easy problemSolve cosx=−12\cos x = -\dfrac{1}{2}cosx=−21 on [0,2π)[0,2\pi)[0,2π).A2π3, 4π3\dfrac{2\pi}{3},\ \dfrac{4\pi}{3}32π, 34πB2π3, 4π4\dfrac{2\pi}{3},\ \dfrac{4\pi}{4}32π, 44πC4π3, 4π3\dfrac{4\pi}{3},\ \dfrac{4\pi}{3}34π, 34πD32π, 4π3\dfrac{3}{2\pi},\ \dfrac{4\pi}{3}2π3, 34πCheck Show answer Walk through it step by step Practice more like this Review this concept