Help finding inverse laplace transform?

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SUMMARY

The discussion focuses on finding the inverse Laplace transform using the residue method. The constants K1 and K2 were determined to be -2 and 4, respectively. Participants suggest substituting values for s, specifically s=0 and s=1, to create two equations involving the unknowns k3 and k4. Solving these equations allows for the determination of k3 and k4, enabling the calculation of the inverse Laplace transform for each fractional term.

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Chandasouk
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Using the residue method, I found K1 and K2 to be -2 and 4 respectively. However, where do I go from there?
 
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It is already mentioned in the figure you have attached.
Substitute two values for s say s=0 and s=1 independently and get two equations in terms of k3 and k4. So now 2 equations and 2 unknowns. You can solve and get values of k3 and k4.
Once you found the values of all constants, you can find inverse LT for each fractional term.
 

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