1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Find the inverse laplace transform of this function

  1. Nov 25, 2011 #1
    1. The problem statement, all variables and given/known data
    F(s) = 3/(s(s^2 +2s + 5))


    2. Relevant equations



    3. The attempt at a solution
    I have used partial fraction using coefficients.

    F(s) = (3/5)s - (3/5) ((s+2)/(s^2 +2s + 5))
    and reduce s^2 +2s +5 by completing the square
    F(s) = (3/5)s - (3/5) ((s+2)/((s+1)^2 + 4))
    I am having trouble finding the right inverse laplace for the second term since (s+2) must be equal to (s+1) to apply the inverse laplace formula in the table...what should i do ...
     
  2. jcsd
  3. Nov 25, 2011 #2

    vela

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Education Advisor

    Use the fact that s+2 = (s+1)+1 and break that term into two terms.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Find the inverse laplace transform of this function
Loading...