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Homework Help: Inverse of This Laplace Function

  1. Nov 29, 2008 #1
    H(s) = 1/(s^2+9)^2

    My attempt to the solution is not that all impressive. I know i have to use convolution to do it, so far i got this

    H(s)= (1/(s^2+9).(1/(s^2+9)^2
     
  2. jcsd
  3. Nov 29, 2008 #2
    [tex]
    \frac{1}{(s^2+9)^2}=\frac{1}{s^2+3^2}\frac{1}{s^2+3^2}[/tex]

    Can you make that a convolution of two inverse transforms you already know?
     
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