Sketch the conic sections whose polar coordinate equations are given in Exercises 77–80. Give polar coordinates for the vertices and, in the case of ellipses, for the centers as well. 77. r = 2 1 + cos 0 78. r = 2 + cos 0 12 79. r = 80. r = 2 cos 0 3 + sin 0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter11: Topics From Analytic Geometry
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Sketch the conic sections whose polar coordinate equations are given
in Exercises 77–80. Give polar coordinates for the vertices and, in the
case of ellipses, for the centers as well.
77. r =
2
1 + cos 0
78. r =
2 + cos 0
12
79. r =
80. r =
2 cos 0
3 + sin 0
Transcribed Image Text:Sketch the conic sections whose polar coordinate equations are given in Exercises 77–80. Give polar coordinates for the vertices and, in the case of ellipses, for the centers as well. 77. r = 2 1 + cos 0 78. r = 2 + cos 0 12 79. r = 80. r = 2 cos 0 3 + sin 0
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