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!

Homework Help: How do I integrate

  1. Apr 30, 2010 #1
    What method would I use to integrate cos(x)/1+sin^2(x)dx? I was thinking by parts but it isn't working for me.
  2. jcsd
  3. Apr 30, 2010 #2
    Try a u substitution.
  4. Apr 30, 2010 #3
    Try a substitution. Notice that cos(x) is the derivative of sin(x).
  5. Apr 30, 2010 #4
    Wouldn't the derivative of sin^2(x) be 2sin(x)cos(x)? I think I'm still a little lost.
  6. Apr 30, 2010 #5
    Try getting it into this format

    [tex] \int \frac{du}{1+u^2}[/tex]
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook