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: Surface area of revolution for an ellipse

  1. Mar 10, 2008 #1
    1. The problem statement, all variables and given/known data

    Find the surface area obtained when the upper half of the ellipse: [tex]\frac{x^{2}}{4}+ y^{2}=1[/tex] is rotated about the x-axis

    2. Relevant equations
    [tex]\int2piyds[/tex]


    3. The attempt at a solution
     
  2. jcsd
  3. Mar 10, 2008 #2

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    Please continue. ds=sqrt(1+(dy/dx)^2)*dy, correct?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook