Let S be the shape obtained by rotating f(x) = 2 /x +1 on the interval [1, 3] around the x-axis. Which integral computes the surface area of S?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 12T
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Let S be the shape obtained by rotating f(x) = 2/x +I on the interval [1, 3] around the x-axis. Which
integral computes the surface area of S?
3
2
1+
dx
x+1
3
1
1+
dx
x+1
4T Vx +1
dx
1+
x+1
3
2
2TVa + 1
1+
dæ
e+1
3
27Vx +1
2+
dx
x+1
Transcribed Image Text:Let S be the shape obtained by rotating f(x) = 2/x +I on the interval [1, 3] around the x-axis. Which integral computes the surface area of S? 3 2 1+ dx x+1 3 1 1+ dx x+1 4T Vx +1 dx 1+ x+1 3 2 2TVa + 1 1+ dæ e+1 3 27Vx +1 2+ dx x+1
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