TrigonometryEasyGraphs of Sine and Cosine ShareGraphs of Sine and Cosine · Easy problemWhat is the amplitude of y=2cos(3x−2π3)−3y = 2\cos\left(3x - \dfrac{2\pi}{3}\right) - 3y=2cos(3x−32π)−3?Check Show answer Walk through it step by step Practice more like this Review this concept