Find all points on the curve y = 4 tan x, - 1/2

Find all points on the curve y = 4tanx, / 2 < x < n / 2, where the tangent line is parallel to the line y = 16x. Sketch the curve and tangent(s) together X' 1 / 2 < X < / = 16k (Type an ordered pair. Use a comma to separate answers as needed. Type an exact answer, using as needed.)