TrigonometryMediumGraphs of Sine and Cosine ShareGraphs of Sine and Cosine · Medium problemWhat is the minimum value of y=4cos(13x+π2)+3y = 4\cos\left(\dfrac{1}{3}x + \dfrac{\pi}{2}\right) + 3y=4cos(31x+2π)+3?Check Show answer Walk through it step by step Practice more like this Review this concept