Find the volume of the solid generated by rotating the infinite region in the first quadrant between y=e-x and the x-axis about the x-axis.
Simplify your answer. Type an exact answer, using pi as needed.
Find the volume of the solid generated by rotating the infinite region in the first quadrant between y=e-x and the x-axis about the x-axis.
Simplify your answer. Type an exact answer, using pi as needed.