- #1
Dustinsfl
- 2,281
- 5
[tex]\int_0^{infinity} \ e^{-s*t}*t*cos(t) dt[/tex]
I tried integration by parts with u=t*cost and dv=e^(-s*t) but that didn't get anywhere.
I then tried: [tex]\L{t^n*g(t)}=(-1)^n d/ds[\int_0^{infinity} \ e^{-s*t}*cos(t) dt[/tex] but again nothing was working.
This is a Laplace Transformation where ft=t cos(t)
I tried integration by parts with u=t*cost and dv=e^(-s*t) but that didn't get anywhere.
I then tried: [tex]\L{t^n*g(t)}=(-1)^n d/ds[\int_0^{infinity} \ e^{-s*t}*cos(t) dt[/tex] but again nothing was working.
This is a Laplace Transformation where ft=t cos(t)