Determine the Symmetries of the Curve $$r ^ { 2 } = - 3 \cos 3 \theta$$

question 186

Multiple Choice

Determine the symmetries of the curve.
- $$r ^ { 2 } = - 3 \cos 3 \theta$$

• A) Origin only
• B) No symmetry
• C) x-axis, y-axis, origin
• D) x-axis only

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