Results 1 to 3 of 3

Math Help - Help with Inverse Laplace Transform

  1. #1
    Newbie
    Joined
    Jul 2009
    Posts
    2

    Help with Inverse Laplace Transform

    I don't know how to get the inverse laplace transform of this

    F(S)= .(s+1)^2
    . . ---------
    . . (s+2)^4
    Last edited by dogfishrising; July 8th 2009 at 06:24 PM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Jun 2009
    Posts
    220
    Thanks
    1
    Maybe it will become clearer if you split it up into partial fractions:

    \frac{(1+s)^2}{(s+2)^4} = \frac{1}{(s+2)^2} - \frac{2}{(s+2)^3} + \frac{1}{(s+2)^4}

    Let me know if you're still stuck as I've worked through the question.

    Another hint if you want it:

    Spoiler:
    \mathcal{L} \left\{t^n f(t)\right\} = (-1)^n \bar{f}^{(n)}(p)
    Last edited by mr fantastic; July 10th 2009 at 07:30 AM. Reason: Merged posts
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jul 2009
    Posts
    2
    thanks I've pretty much got it now
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Inverse Laplace Transform
    Posted in the Calculus Forum
    Replies: 3
    Last Post: November 30th 2011, 11:52 PM
  2. Inverse Laplace Transform
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 25th 2010, 11:14 PM
  3. Inverse Laplace Transform.
    Posted in the Calculus Forum
    Replies: 2
    Last Post: December 2nd 2008, 05:49 AM
  4. inverse laplace transform
    Posted in the Calculus Forum
    Replies: 3
    Last Post: March 30th 2008, 12:41 AM
  5. Inverse Laplace Transform
    Posted in the Calculus Forum
    Replies: 1
    Last Post: August 7th 2007, 05:33 PM

Search Tags


/mathhelpforum @mathhelpforum