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Help show that Laplace transform exists

  1. Mar 24, 2009 #1
    1. The problem statement, all variables and given/known data

    Show that f(t)=e^(5t) sin(t) satisfies the condition for the LaPlace transform to exist

    I can solve the Laplace and get 2/((s-5)^2 + 4)

    How do I show that the conditions exist? If it is solvable using the table, shouldn't that be enough?
     
  2. jcsd
  3. Mar 24, 2009 #2

    jambaugh

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    You must show that the improper integral defining the Laplace transform of the function exists. Recall that you define the value of an improper integral as the limit of a regular definite integral as the limit of integration approaches the singular value (in this case the upper limit of integration approaching infinity).
     
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