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!

Evaluating an integral

  1. Oct 2, 2007 #1
    1. The problem statement, all variables and given/known data
    Evaluate the integral with respect to f of the following function

    3. The attempt at a solution

    This if for one of my homeworks. I haven't taken a single math course in almost 2 years so I'm kind of rusty. I'm not sure how to evaluate this. I tried moving the 'a' outside the integral but that doesn't help. I believe there is a trig identity I'm supposed to be able to use. Any tips or hints are greatly appreciated.
  2. jcsd
  3. Oct 2, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor

    That is for the form [tex]\frac{a^2}{a^2+b^2f^2}[/tex]= [tex]\frac{1}{1+ \left(\frac{bf}{a})^2}[/tex].
    Does it help you to know that the derivative of arctan(x) is [tex]\frac{1}{x^2+ 1}[/tex]?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Evaluating an integral
  1. Evaluating integral (Replies: 7)

  2. Evaluate the Integral (Replies: 5)

  3. Evaluate this integral (Replies: 4)

  4. Evaluate the integral (Replies: 7)

  5. Integral evaluation (Replies: 5)