Results 1 to 3 of 3

Math Help - Integral1

  1. #1
    Super Member
    Joined
    Jun 2008
    Posts
    829

    Integral1

    Calculate:




    \int \frac{xdx}{\sqrt{x^4-2}}
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by Apprentice123 View Post
    Calculate:




    \int \frac{xdx}{\sqrt{x^4-2}}
    first do a substitution of u = x^2 to obtain \frac 12 \int \frac 1{\sqrt{u^2 - 2}}~du

    now do a trig substitution: u = \sqrt{2} \sec \theta
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member
    Joined
    Jun 2008
    Posts
    829
    thanks
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. integral1
    Posted in the Calculus Forum
    Replies: 6
    Last Post: April 24th 2009, 02:57 PM
  2. Integral1
    Posted in the Calculus Forum
    Replies: 2
    Last Post: August 6th 2008, 05:10 PM

Search Tags


/mathhelpforum @mathhelpforum