1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Polar Curve Area

  1. Sep 20, 2006 #1
    Hey guys,

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

    Thanks a lot!
  2. jcsd
  3. Sep 20, 2006 #2


    User Avatar
    Science Advisor

    One peddle? Oh! One "petal"!! cosine goes from 0 to 0 between [itex]\pi/2[/itex] and [itex]\pi/2[/tex]. [itex]6\theta= \pi/2[/itex] when [itex]\theta= \pi/12[/itex].

    I would recommend using -[itex]\pi/12[/itex] to [itex]\pi/12[/itex]. 0 to [itex]\pi/12[/itex] will only give half of a petal. Of course, if you are really clever, you could use 0 to [itex]\pi/12[/itex] and then multiply by 2.
    Last edited by a moderator: Sep 20, 2006
  4. Sep 20, 2006 #3
    lol, sorry, i meant petal :P
    Thanks a lot
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook