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## Homework Statement

I need to find the laplace transform of f(t)=tcos(t).

## Homework Equations

[tex]\int e^-^s^ttcos(t)dt[/tex]

## The Attempt at a Solution

I just need help on how to integrate this. I can find the answer easily using the f(t)=tcos(kt) general formula but I wish to find it directly.

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