symmetry test for polar equations

[@venuss.7218]

I really like the style of your explanation. It makes it sound so easy. But yes. It is easy now that I see it. Thank you. Answers. Boom!

[@strugglingcollegestudent]

Excellent explanation thank you! Helped me visualize the axis(es)

[@roxielu4263]

Thank you this helped very much!!

[@DRA_4]

THANK YOU SO MUCH 🙌🏾

[@ninjastar9397]

This helped! Thx!!

[@mathisreallyfun]

Hi, how would you test for r=sin(2theta)? The graph shows it's symmetric to all 3, but these methods only work for theta=pi/2. Thank you!