Theory and ExamplesExercises are about the
Chapter 8, Problem 72E(choose chapter or problem)
Problem 72E
Theory and Examples
Exercises are about the infinite region in the first quadrant between the curve y = e-x and the x-axis.
The region in Exercise 71 is revolved about the x-axis to generate a solid.
a. Find the volume of the solid.
b. Show that the inner and outer surfaces of the solid have infinite area.
Reference: Exercise 71
Find the area of the region that lies between the curves y = sec x and y = tan x from x = 0 to x = π/2
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