Question: Sketch r = 3 cos 1 (see Example 9). EXAMPLE 9 Symmetry About the x-Axis Sketch the limaon curve r = 2 cos

Sketch r = 3 cos θ − 1 (see Example 9).

EXAMPLE 9 Symmetry About the x-Axis Sketch the limaon curve r = 2 cos 9 - 1.

EXAMPLE 9 Symmetry About the x-Axis Sketch the limaon curve r = 2 cos 0 - 1.

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