V V 3. Let S be the surface given by the following parameterization. Let D = [-1, 1] x [0, 27] and define r(u, v) = (u cos v, usin v, v). = 10 & (x + 5 )dx (a) Consider the vertical line segment L = {(u, v) E D |u = 0} in D. Describe geometrically the im of L (under r. 2X45 x 2 (b) Repeat for the vertical segments where u = -1 and u = 1. (c) Use your answers in (a) and (b) to make a sketch of S. ( s + - ) xDas