# How do you find the volume of the solid generated by revolving the region bounded by the graphs #y=e^-x, y=0, x=0, x=1#, about the x axis?

##### 1 Answer

Mar 2, 2018

#### Explanation:

At any distance x, they coordinate happens to be the radius of the revolved element

radius is

Circular area generated by revolving around x axis is

volume of the elementary solid of thickness dx is

The lower limit is given to be x=0

The upper limit is given to be x=1

Integrating between x=0 and x=1