- #1
Beeorz
- 30
- 0
Homework Statement
Find the volume of the solid obtained by rotating the region under the graph of y=1/x and y=1/x^2 about the vertical axis x=-1
Also given are points on the y-axis (0,2) and (0,5). I guessing these points are specific sections of the graphs where we find the volume.
Homework Equations
Volume of revolution = pi int_a^b ((R^2)-(r^2))dx
The Attempt at a Solution
For this problem I would think...
a=2
b=5
but I am uncertain as to how to find R and r. I know they correspond the outer and inner radii but how do I go about find them.
I attached a picture of what the problem looks like.