PrecalculusEasyAnalytic Trigonometry ShareAnalytic Trigonometry · Easy problemWhich expression is identically equal to 1−cos2x2\dfrac{1-\cos2x}{2}21−cos2x?Acos2x\cos^2xcos2xBsin2x\sin^2xsin2xCsinx\sin xsinxD2sin2x2\sin^2x2sin2xCheck Show answer Walk through it step by step Practice more like this Review this concept