Find Area of Polar Curve: Cos(6ǿ)

[gr3g1]

Hey guys,

I just wanted to know, if my polar curve is cos(6ǿ) and i have to find the length of one peddle... can i use the interval of 0 and Pi/12?

Thanks a lot!

 

[HallsofIvy]

One peddle? Oh! One "petal"! cosine goes from 0 to 0 between \pi/2 and \pi/2[/tex]. 6\theta= \pi/2 when \theta= \pi/12.<br /> <br /> I would recommend using -\pi/12 to \pi/12. 0 to \pi/12 will only give half of a petal. Of course, if you are really clever, you could use 0 to \pi/12 and then multiply by 2.

 

[gr3g1]

lol, sorry, i meant petal :P
Thanks a lot