Laplace Transform: Get the Answers You Need

[kukumaluboy]

Gimme CLue

 

[stevenb]

Gimme CLue

You can stick that function directly into the integral formula which defines the inverse Laplace transform and try to calculate it out.

You can use a Laplace transform table. This approach starts by doing a partial fraction expansion of your function. Then the resulting sum of terms can be inverse transformed by matching with transforms in a table. Remember that a Laplace transform is a linear operator.

 

[LCKurtz]

Here's a big hint. What do you get if you differentiate the following with respect to s:

$$\frac s {s^2+4}$$

 

[LawlQuals]

Investigate factoring/expanding some terms, and see what you get. In the end, I do not even think you are going to have to use a partial fraction decomposition to do the problem. The terms in the fraction are chosen with reason in this problem, i.e. it is much simpler than is written.

What have you attempted?

 

[kukumaluboy]

Ok Solved! LawlQuals you were rite. I did not use partial fractions. Just simplify and the formulae can be used.

 

[stevenb]

Investigate factoring/expanding some terms, and see what you get. In the end, I do not even think you are going to have to use a partial fraction decomposition to do the problem. The terms in the fraction are chosen with reason in this problem, i.e. it is much simpler than is written.

What have you attempted?

I thought he asked for a clue, not a solution.