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TrigonometryMediumTrigonometric Equations

Trigonometric Equations · Medium problem

Solve sin⁡2x=sin⁡x\sin 2x = \sin x on [0,2π)[0,2\pi). (Hint: sin⁡2x=2sin⁡xcos⁡x\sin 2x = 2\sin x\cos x.)