Question

identify, graph, and state the symmetries for r=9cos(5theta)

Answer 1

well it will be a cosine graph :only diff is that peak value will be 5 instead of 1 and period get reduced to 2pi/5

Answer 2

i tried to convert to rectangular coordinates equation, but got confused. i multiplied each side by r, then substituted r^2 for x^2+y^2, then tried to sub x for r cos theta and that's when I got confused. What do I do with the 9 and the 5?

Answer 3

y should u do all that ?? read my reply above again!! its the most elegant way

Answer 4

ok, thank you. i appreciate the assistance

Answer 5

welcome :)