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!

Integral involving trig substitution

  1. May 10, 2012 #1
    Hello, I am trying to integrate 1/(x^2-1).

    Apparently this can be solved by using trig substitution involving tan ?
    Can someone please help me to understand how to go about it.

    Thanks kindly for any help.
     
  2. jcsd
  3. May 10, 2012 #2

    sharks

    User Avatar
    Gold Member

    Let [itex]x= \sec \theta [/itex]
     
  4. May 10, 2012 #3
    Alternatively you can use partial fractions decomposition. You can also user ##x = \sin{(\theta)}## and multiply by (-1)/(-1).
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook