Question

let R be the region bounded by y=sqrt x, y=1, and x=4. Write an integral expression that can be used to find the volume of the solid generated by rotating R about: 1. the x-axis, 2. the y-axis, 3.y=1,4. x=-2, 5.y=-3

Answer 1

anyway, the picture below is using y = 0, or the x-axis, which is just a disk