I've been aske dto inv lap trans the following: s/(S^2 + 4s + 3) I've gotten to = s/((s+2)^2-1) which I think is right but I'm not really sure where to go from here. Anyone help?
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Try a partial fraction: $\displaystyle \frac{3}{2(s+3)}-\frac{1}{2(s+1)}$ Then we get a ilaplace of: $\displaystyle \frac{3}{2}e^{-3t}-\frac{1}{2}e^{-t}$
Thanks Galactacus. I've just realised I've been a right eejit. Thanks for pointing out the obvious!
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