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: Small but pressing Fourier series question

  1. Nov 25, 2012 #1
    1. The problem statement, all variables and given/known data
    Please see picture attached

    2. Relevant equations

    3. The attempt at a solution
    ck = 1/T ∫ a-a x(t).e-jk2pit/T

    So x(t) = Ʃk=-∞ (sin(k.a.2pi/T).a-a e-jk2pit/T)/k.pi

    but is is supposed to be:

    So x(t) = Ʃk=-∞ (sin(k.a.2pi/T).a-a e-jk2pit/T)/k.pi.2.a

    but I don't know why?


    Attached Files:

    • QQ.PNG
      File size:
      12.5 KB
    Last edited: Nov 25, 2012
  2. jcsd
  3. Nov 25, 2012 #2
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook