- #1
rudyx61
- 10
- 0
(3*e^(-2s))/(s(s+5))
I was hoping someone could tell me how to find the partial fraction for the above; the answer i ended up with was: (3/5)/s - (3*e^(10))/(s+5) and i went about it by:
(3*e^(-2s))/(s(s+5))=A/s+B/(s+5)
(3*e^(-2s))=A(s+5) + B(s)
set s=-5 and found B=-3*e^(10)/5
set s=0 and found A=3/5
but apparently the answer shown by my teacher was ((3*e^(-2s)/5)((1/s)-(1/(s+5))
Im pretty much puzzled as to how he got this answer
I was hoping someone could tell me how to find the partial fraction for the above; the answer i ended up with was: (3/5)/s - (3*e^(10))/(s+5) and i went about it by:
(3*e^(-2s))/(s(s+5))=A/s+B/(s+5)
(3*e^(-2s))=A(s+5) + B(s)
set s=-5 and found B=-3*e^(10)/5
set s=0 and found A=3/5
but apparently the answer shown by my teacher was ((3*e^(-2s)/5)((1/s)-(1/(s+5))
Im pretty much puzzled as to how he got this answer