1.

The system represented by the state-variable model\(\dot{X} = \left[ {\begin{array}{*{20}{c}} 0&-1\\ 1&-2 \end{array}} \right]X+\left[ {\begin{array}{*{20}{c}} 1\\ 2 \end{array}} \right]U\) is

A. oscillatory
B. critically damped
C. over-damped
D. under-damped
Answer» C. over-damped


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