How do I integrate
$\displaystyle \int e^{-st}t\cos{t}dt$
I've tried integration by parts (turned out long, messy, and nothing like the answer in the back of the book) and I don't think I can use derivatives of a transform yet.
How do I integrate
$\displaystyle \int e^{-st}t\cos{t}dt$
I've tried integration by parts (turned out long, messy, and nothing like the answer in the back of the book) and I don't think I can use derivatives of a transform yet.