Question
The following are about an infinite region in the 1st quadrant between y=e^-x and the x-axis.
B)Find the volume of the solid generated by revolving the region about the y-axis
Part A was solved below. Does anyone know how to do Part B?
B)Find the volume of the solid generated by revolving the region about the y-axis
Part A was solved below. Does anyone know how to do Part B?
Answers
using discs, we have
v = ∫[0,∞] πe^(-2x) dx
= π/2
v = ∫[0,∞] πe^(-2x) dx
= π/2
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