Originally Posted by
Kbotz I have been trying to get my head around this question, but i just can't seem to do it.
Find the Inverse Laplace transform for:
1/s^2(s+1)^2
My steps:
Partial fractions
1/s^2(s+1)^2 = A/s + B/s^2 + C/(s+1) + D/(s+1)^2
Then cross multiplication and collection of like terms
1 = (A+B)(s+1)^2 + C(s+1) +(C+D)s^2 + A(s)
then created 4 equations by substituting the following s values: -1,0,1,2
Then used simultaneous equation solver on my calculator to solve the 4 equations, the calculator shows up with math error.
Where am i going wrong?
Point me in the right direction please.