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!

Integrate cos[(pi/9)(x^2)

  1. May 2, 2010 #1
    1. The problem statement, all variables and given/known data
    Integrate cos[(pi/9)(x^2)


    2. Relevant equations
    Is there a trig identity for the cos(x^2) ?


    3. The attempt at a solution

    U=(pi/9)T^2
    dU= [2(pi)/9] (T)dT dT= dU/ {[2(pi)/9 (T)]}

    Substitute in get cosU dU/ {[2(pi)/9 (T)]} Now what?
     
  2. jcsd
  3. May 2, 2010 #2

    gabbagabbahey

    User Avatar
    Homework Helper
    Gold Member

    Do you mean:

    [tex]\int \cos\left(\frac{\pi x^2}{9}\right)dx[/itex]

    or something else? Are you given integration limits, or are you only asked for the indefinite integral?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Integrate cos[(pi/9)(x^2)
  1. Cos^2(x) Integral (Replies: 5)

  2. Integral of cos^2 x (Replies: 3)

  3. Integral of cos(x^2) (Replies: 6)

Loading...