TrigonometrySuperchallengeGraphs of Sine and Cosine ShareGraphs of Sine and Cosine · Superchallenge problemHow many solutions does cos3x=12\cos 3x=\tfrac{1}{2}cos3x=21 have on [0,2π][0,2\pi][0,2π]?Check Show answer Walk through it step by step Practice more like this Review this concept