모두CBT
G(s)=s2+2s+1s2+s−6\mathrm{G}(\mathrm{s})=\dfrac{\mathrm{s}^{2}+2\mathrm{s}+1}{\mathrm{s}^{2}+\mathrm{s}-6}G(s)=s2+s−6s2+2s+1인 특성방정식의 근은?
-1
-3, 2
-1, -3
-1, -3, 2