In Exercises 2544, analyze the graph of the polar curve.r 2 = 9 cos 2u, 0 u 2p
Chapter 6, Problem 6.1.1.371(choose chapter or problem)
In Exercises 25–44, analyze the graph of the polar curve.
\(r^{2}=9 \cos 2 \theta, 0 \leq \theta \leq 2 \pi\)
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