Results 1 to 2 of 2

Math Help - Areas with polar coordinates

  1. #1
    Newbie
    Joined
    Oct 2009
    Posts
    13

    Areas with polar coordinates

    I'm having a spot of trouble with some of these problems. A little help please? Thanks!

    Find the area between a large loop and the enclosed small loop of the given curve.
    r = 1 + 2cos(3θ)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    12,061
    Thanks
    900
    Quote Originally Posted by DarthPipsqueak View Post
    I'm having a spot of trouble with some of these problems. A little help please? Thanks!

    Find the area between a large loop and the enclosed small loop of the given curve.
    r = 1 + 2cos(3θ)
    double half the outer loop - double half the inner loop

    V = \int_0^{\frac{2\pi}{3}} r^2 \, d\theta - \int_{\frac{2\pi}{3}}^{\pi} r^2 \, d\theta
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 10
    Last Post: September 24th 2010, 05:33 AM
  2. areas in polar coordinates
    Posted in the Calculus Forum
    Replies: 3
    Last Post: May 3rd 2010, 08:22 AM
  3. areas and lengths in polar coordinates
    Posted in the Calculus Forum
    Replies: 2
    Last Post: May 3rd 2009, 12:53 PM
  4. Areas in Polar Coordinates
    Posted in the Calculus Forum
    Replies: 8
    Last Post: April 28th 2009, 12:44 PM
  5. Areas in polar coordinates
    Posted in the Calculus Forum
    Replies: 2
    Last Post: April 28th 2008, 12:03 AM

Search Tags


/mathhelpforum @mathhelpforum