Use the integration capabilities of a graphing utility to approximate to two decimal places the area of the surface formed by revolving the polar equation over the given interval about the polar axis. r = 8 cos(20), Need Help? Read It Watch It

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 69E
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I need help with these two problems please help me

Use the integration capabilities of a graphing utility to approximate to two decimal places the area of the surface formed by revolving the polar equation over the given interval about the polar axis.
[0, 1]
r = 8 cos(20),
Need Help?
Read It
Watch It
Transcribed Image Text:Use the integration capabilities of a graphing utility to approximate to two decimal places the area of the surface formed by revolving the polar equation over the given interval about the polar axis. [0, 1] r = 8 cos(20), Need Help? Read It Watch It
Find the points of intersection of the graphs of the equations.
r = 3 + sin 0
r = 2 csc 0
0 ≤ 0 < π
(r, 0) =
=
(r, 0) =
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* )
(smaller 8-value)
(larger 0-value)
Transcribed Image Text:Find the points of intersection of the graphs of the equations. r = 3 + sin 0 r = 2 csc 0 0 ≤ 0 < π (r, 0) = = (r, 0) = Need Help? Read It * ) (smaller 8-value) (larger 0-value)
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