1.

The characteristic equation of the above closed-loop system is:

A. s2 + 11s + 10 = 0
B. s2 + 11s + 130 = 0
C. s2 + 10s + 120 = 0
D. s2 + 10s + 12 = 0
Answer» C. s2 + 10s + 120 = 0


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