- #1
syeh
- 15
- 0
Homework Statement
A represents the 1st quadrant area bounded by f(x)=e^(-tanx), y=.01, y=.09, and the y-axis. Write an integral expression for the volume of the figure that results from revolving A around the line x=30.
Homework Equations
The Attempt at a Solution
So, I know that I have to integrate sideways. To do that, I tried putting the equation y=e^(-tanx) into x= form:
y=e^(-tanx)
-tanx=lny
tanx=-lny
x=invtan(-lny)
So now, I'm not sure what to to. I think you have to integrate sideways somehow and then revolve it around the verticle line x=30...?
Last edited by a moderator: