1. Not finding help here? Sign up for a free 30min 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!

Calc II Problem

  1. Oct 27, 2004 #1
    Ok i'm working on this Integral: http://home.comcast.net/~bruins83/IMG_1527.jpg

    I figured the Integral to be equal to 11/2. Now they want me to graph it, and I'm slidght confused on how to go about this, The direction read, Sketch the solid whose volume is given by (integral) Find the volume.

    Any help would be appericated.

  2. jcsd
  3. Oct 27, 2004 #2
    i can't see what you've posted there properly can you just type it out
  4. Oct 27, 2004 #3


    User Avatar
    Gold Member

    [tex]\int_{0}^{1} \int_{0}^{1}2-x-y~dydx[/tex]
  5. Oct 27, 2004 #4
    the solution to that is just one

    the new function after evaluating the indefinite integral is [tex]\frac{-1}{2} xy (x+y-4) [/tex]
  6. Oct 27, 2004 #5
    Yeha I went back over it, and got one, sorry about that. Anyways, I still need help graphing it. Actually what DO i even look at to graph?
  7. Oct 28, 2004 #6
    if you want to graph (sketch) it then you have to hold Y constant and look at all the ways x can move around the axes. After that simply enclose the surface

    it loos like a gentle slope down a hill and then a little rise on the positive side
    Last edited: Oct 28, 2004
  8. Oct 28, 2004 #7


    User Avatar
    Gold Member

    What exactly do they want you to graph? Can you quote the book exactly?

    If they just want you to draw in the region over which the function is being integrated then you just take the limits and graph them on the x/y plane.

    Your limits are y=0, y=1, x=0, x=1 so it would just be a square.

    Edit: Never mind, I reread your post and it says to sketch the solid.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Calc II Problem
  1. Calc problem (Replies: 2)