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Laplace transformation

  1. Nov 30, 2008 #1
    1. The problem statement, all variables and given/known data
    f(t) = t^2(e^2t)sin(3t)

    2. Relevant equations

    3. The attempt at a solution
    I think that I am just not breaking this down right. If I transform (e^2t)sin(3t) I used b/(s-a)^2 + b^2 which came out to = 3/(s-2)^2 +9 and transform the t^2 and get t^2/s....Since I have the correct answer in front fo me I already know that this wrong and I am not seeing how the teacher got to that answer since he didn't show the steps....
  2. jcsd
  3. Nov 30, 2008 #2


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    Homework Helper

    Apply L{t2sin3t} first. Then apply the shift property to obtain L{e2tt2sin3t}
  4. Nov 30, 2008 #3

    I want to know the difference between differentiation and Integration with practical example? How can a differential equation x^3+x^2+x=32 can be explained in practical sense?
    can anybody help me out?
  5. Nov 30, 2008 #4


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    Homework Helper

    start a new thread, don't hijack someone else's
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