Let D be the region bounded by y = 1, y = 3, y = x - 1 and 2y = x - 3 1. Draw a careful sketch of D, indicating any intersection points. 2. Let S, be the solid generated by revolving D about the r-axis. Write an expression that computes the volume of S, in two ways: . Using the washers method. . Using the cylindrical shells method. Explain in one or two sentences which method provides the easiest computation.3. Let 52 he the solid generated by revolving D about the .1: = 1. W'rite an expression that computes the volume of 52 in two ways: 0 Using washers method. a U sing cylindrical shells 111e1..110d. Explain in one or two sentences which method provides the easiest computation