- #1
jumbogala
- 423
- 4
Homework Statement
F(s)=(−2s−2)/((s−1)2+9)
Find f(x) by computing L-1[F(s)] = f(x).
Homework Equations
The Attempt at a Solution
I made put (s-1) in place of s in the numerator, then compensated for that by subtracting 2:
F(s) = (-2(s-1) - 2 -2 ) / ((s-1)2 + 9)
Then s-1 becomes s...
F(s) = (-2s - 4) / (s2 + 32)
Split this into 2 parts:
-2s / s2 + 32 and (-4/3)(3 / s2 + 32)
This gives -2cos(3x) - (4/3)sin(3x) as f(x). But it's wrong... what should I have done differently?