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Question: Inverse Laplace of a 3rd order function problem

Question:Inverse Laplace of a 3rd order function problem

Jaded1 0 Maple
student solve inverse
August 03 2012
0

Hi guys, I'm trying to solve the following function:

 

>with(inttrans):

>invlaplace (15/(s3 + 6s2 + 15s + 15), s, t)

but I'm not getting a viable answer - can maple answer this?

 

I've also simplified the above function a bit to: H(s) = 15/[(s + 2.3222)(s2 + 3.6778s + 6.4594)] and then tried to find it's inverse laplace but still don't get an answer.

Am I using the wrong commands?
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