help me with those question

1.

Find the volume of the solid generated by revolving the shaded region about the y-axis. . 0.5- x = tan 1.5 . . . The volume of the solid generated by revolving the shaded region about the y-axis is Type an exact answer, using x as needed.)Find the volume of the solid generated by revolving the region bounded by the graphs of y = 2x + 1 and y = 2x + 13 about the x-axis. The volume of the solid generated by revolving the region bounded by the graphs of y = 2x + 1 and y = 2x + 13 about the x-axis is cubic units. (Round to the nearest hundredth.)Use the shell method to find the volume generated by revolving the shaded region about the y-axis. The volume is cubic units. II. (Type an exact answer, using it as needed, or round to the nearest tenth.) Y = 14Use the shell method to find the volume of the solid generated by revolving the region bounded by y = 4x - 3, y= 1x, and x = 0 about the y-axis. . . . The volume is cubic units. (Type an exact answer, using i as needed.)