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: Inverse Laplace Tranform

  1. May 30, 2006 #1
    <Inverse Laplace Transform>

    Hi, I was given this: F(z) = 1/(z^2)(z^2+1) and was asked to use its residues to compute f(t). [z is a complex number]

    The answer I got is -sin(t). But the answer on the book says t-sin(t).
    I double checked and the residue of z=0 is 0, I don't get where the t is from.
    Please, can anyone help? Thanks
  2. jcsd
  3. May 30, 2006 #2


    User Avatar
    Homework Helper


    hence f(t)=t-sin(t).
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook