- #1
Ric-Veda
- 32
- 0
Homework Statement
Solve Laplace Transform L{tsin(2t)sin(5t)}
Homework Equations
cos(bt)=s/s^2+b^2
trig identity (product identity): sin(a)sin(b)=1/2[cos(a-b)-cos(a+b)
t^nf(t)=(-1)^nd^n/ds^nF(S)
(the template is complicated for me to use. Srry for the inconvinience)
The Attempt at a Solution
So far I have 1/2L{cos(-3)-1/2L{cos(7)}
1/2(s/s^2+4)-1/2(s/s^2+49)
Am I right?