- #1
Jeviah
- 16
- 0
Homework Statement
y(w)= 3/(iw-1)^2(-4+iw)
Homework Equations
N/A
The Attempt at a Solution
3/(iw-1)^2(-4+iw)
= A/iw-1 + B/(iw-1)^2 + C/-4+iw
for B iw = 1
B=3/-4+1 = -1
for C iw = 4
C= 3/(4-1)^2 = 1/3
I know the answer for A should be -1/3 however I am unsure how to obtain this as if the above cancellation method is used then the denominator equals 0.