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!

Help with integrals

  1. Feb 2, 2009 #1
    1. The problem statement, all variables and given/known data
    [tex]\int[/tex] sin^-1y dy

    3. The attempt at a solution

    [tex]\int udv=uv-[/tex] [tex]\int vdu[/tex]

    =ysin^-1y-[tex]\int \frac{y}{\sqrt{1-y^2}}[/tex]

    my main trouble is evaluating the integral at this point.
    I would appreciate it if someone could show me how to evaluate the integral
    [tex]\int \frac{y}{\sqrt{1-y^2}}[/tex]

    If it was [tex]\frac{1}{y}[/tex] then I can see it would be ln x
  2. jcsd
  3. Feb 2, 2009 #2


    Staff: Mentor

    Assuming the work leading to your last integral is correct (I didn't check), you can use an ordinary substitution, u = 1 - y^2, du = -2u du. It's pretty straightforward.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Help with integrals
  1. Integral help (Replies: 4)

  2. Integration Help (Replies: 5)

  3. Integration help! (Replies: 3)

  4. Help with an integral (Replies: 1)

  5. Integrals help (Replies: 7)