28.find the volume of the solid in the first octant bounded by the co-ordinate planes, the plane r = 3, and the parabolic cylinder =4-y 97-8 3 e. a. b. 128 d. 2

28.Find the volume of the solid in the first octant bounded by the co-ordinate planes, the plane r = 3, and the parabolic cylinder =4-y 97-8 3 e. a. b. 128 d. 2 16 20 29.Find the volume of the solid cut from the first octant by the surface z = 4-x-y b97-8 3 128 c.15 . 16 d. 20 30.Find the volume of the wedge cut from the first octant by the cylinder =12-3y . 16 and the plane x+y=2 128 15 b -8 C. d. 2 20