F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?

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F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?原式=4/(s+2)

F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?
F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?

F(s)=s^2+5s+2/(s+2)(s^2+2s+2)?
原式= 4/(s+2) - 3(s+1)/((s+1)^2 + 1)
=4e^(-2t) - 3cost*e^(-t)