l. (3 points) Find the vohune of the solid obtained by rotating the curve _ l _1+:|I:2 y forlgmgri around the line :1: = 1. Indicate the method you are using. 2. [It] points) a. Sketch the region bounded by the curves 121 and In a: on the interval [.2, 2e]. b. Find the volume obtained by rotating the region in part {a} around the yaxis. 3. (9 points) Find the vohune of the solid obtained by rotating the region bounded by the curve y = o'er + 1 and the Iaxis on the interval [[L 1] around the a. :1: axis b. liney = 1