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!

Indefinite integral

  1. Nov 15, 2005 #1
    I have:


    int (1/(sqrt -x^2 -2x))dx

    so I rewrite (-x^2-2x) --> 1-(x+1)^2 and swap those two.

    then I say t=x+1, and substitute that in.

    So now I have:

    int (1/(sqrt 1-t^2)) dt

    Here I get stuck, can anyone please help?
     
  2. jcsd
  3. Nov 15, 2005 #2
    That was an excellent substitution. Review the derivative of the arcsine function.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Indefinite integral
  1. Indefinite Integral (Replies: 1)

  2. Indefinite integration (Replies: 1)

  3. Indefinite Integration (Replies: 11)

  4. Indefinite Integrals (Replies: 4)

  5. Indefinite Integral (Replies: 2)

Loading...