Results 1 to 2 of 2

Math Help - Double integral:volume

  1. #1
    Newbie
    Joined
    Mar 2008
    Posts
    24

    Double integral:volume

    My question is in the attachment.Sorry for any inconvenience.
    Attached Thumbnails Attached Thumbnails Double integral:volume-why.jpg  
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by prescott2006 View Post
    My question is in the attachment.Sorry for any inconvenience.
    There's no symmetry when calculating this volume.

    The graph of 1 - \cos^3 \theta is not symmetric over 0 \leq \theta \leq \pi ......

    \int_{0}^{\pi/2} 1 - \cos^3 \theta \, d \theta = \frac{\pi}{2} - \frac{2}{3} \neq \int_{\pi/2}^{\pi} 1 - \cos^3 \theta \, d \theta = \frac{\pi}{2} + \frac{2}{3} .....
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 0
    Last Post: July 12th 2010, 05:11 AM
  2. [SOLVED] Double integral find volume
    Posted in the Calculus Forum
    Replies: 2
    Last Post: May 10th 2010, 05:21 PM
  3. Finding volume using a double integral?
    Posted in the Calculus Forum
    Replies: 1
    Last Post: November 8th 2009, 05:11 PM
  4. Volume by double integral
    Posted in the Calculus Forum
    Replies: 1
    Last Post: February 26th 2009, 12:05 AM
  5. Replies: 1
    Last Post: February 3rd 2009, 06:51 PM

Search Tags


/mathhelpforum @mathhelpforum