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!

Trigonometric integration

  1. Feb 10, 2012 #1
    1. The problem statement, all variables and given/known data

    Screenshot2012-02-10at55111AM.png

    I don't understand why the x/2 is not being integrated. I would think one should use u substitution. u = x/2, du = x, but they're not doing that.
     
  2. jcsd
  3. Feb 10, 2012 #2
    Actually the book referred has used this substitution and have finally put u=x/2 again as question is asked in form of x/2 and not in u.
     
  4. Feb 10, 2012 #3

    Char. Limit

    User Avatar
    Gold Member

    Actually, they DID, but they skipped a couple of steps (like explaining HOW they integrated). If you try a u-substitution, you'll get the same answer they did.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Trigonometric integration
  1. Trigonometric Integral (Replies: 16)

  2. Trigonometric Integral (Replies: 1)

  3. Trigonometric integral (Replies: 3)

Loading...