Answer
See graphs, $(3,\pm\frac{\pi}{3})$.
Work Step by Step
See graphs for $r=3 $ and $r=2+2cos(\theta) $. We can find the intersects as $(3,\pm\frac{\pi}{3})$ in polar coordinates.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 8 - Polar Coordinates; Vectors - Section 8.2 Polar Equations and Graphs - 8.2 Assess Your Understanding - Page 606: 64
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