Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 6 - Section 6.4 - Graphs of Polar Equations - Exercise Set - Page 755: 95


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Work Step by Step

To test for symmetry with respect to the line $\theta=\frac{\pi}{2}$ in which $r$ is not replaced, we can replace $\theta$ with $\pi - \theta$ and see if the equation remains the same.
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