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Homework Help: Laplace tranforms, what method would you use to solve this question?

  1. Oct 30, 2012 #1
    Use the Laplace Transform of f (t) = t2 sin 7t to find the Laplace Transform
    of f' (t) = 2t sin 7t + 7t2 cos 7t

    also note that:

    the laplace transform of t^2 sin ωt = (6ωs^2 - 2ω^3) / (s^2 + ω^2)^3

    I dont even know how to approach this so any help whatsoever would be hugely appreciated
  2. jcsd
  3. Oct 30, 2012 #2


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    Science Advisor

    I would imagine that whoever gave you this problem expects you to know that the Laplace transform of f'(x) is f(0) plus s times the Laplace transform of f(x).
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