Question

1) Find the volume of the solid of revolution formed when the region bounded between
x = 1, x = 4, y = x2 and y = 0

is revolved vertically around the x-axis.

Using cans is the answer 21π?

Answer 1

by x2 you mean x*2 or x^2

Answer 2

if x*2

Answer 3

I think

Answer 4

area of a small slice will result in a ring so it be

pi r2^2 pi r1^2

Answer 5

I know it as shell method
never heard "cans" befor lol

Answer 6

we need the height and radius of each cylinder...