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Homework Help: Laplace Transform of Delta Function

  1. Nov 18, 2012 #1
    1. The problem statement, all variables and given/known data
    Evaluate the Laplace transform: L{δ(t-∏)tan(t)}


    2. Relevant equations



    3. The attempt at a solution
    L{δ(t-∏)tan(t)} = ∫ δ(t-∏)tan(t) dt evaluated from 0 to ∞
    =tan(∏)e-∏*s
    = 0

    Could someone check my work on this one? I'm suspicious that my transform is just zero. Thanks!!
     
  2. jcsd
  3. Nov 18, 2012 #2

    Dick

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    Science Advisor
    Homework Helper

    You omitted the e^(-st) factor in the definition of the Laplace transform, but sure, 0 is correct.
     
  4. Nov 19, 2012 #3
    Oops-Typing error. Thanks! :)
     
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