1.

The state transition matrix for the system \(\left[ {\begin{array}{*{20}{c}} {{{\dot x}_1}}\\ {{{\dot x}_2}} \end{array}} \right] = \left[ {\begin{array}{*{20}{c}} 1&0\\ 1&1 \end{array}} \right]\;\left[ {\begin{array}{*{20}{c}} {{x_1}}\\ {{x_2}} \end{array}} \right] + \left[ {\begin{array}{*{20}{c}} 1\\ 1 \end{array}} \right]u\) is

A. \(\left[ {\begin{array}{*{20}{c}} {{e^t}}&0\\ {{e^t}}&{{e^t}} \end{array}} \right]\)
B. \(\left[ {\begin{array}{*{20}{c}} {{e^t}}&0\\ {{t^2}{e^t}}&{{e^t}} \end{array}} \right]\)
C. \(\left[ {\begin{array}{*{20}{c}} {{e^t}}&0\\ {t{e^t}}&e^t \end{array}} \right]\)
D. \(\left[ {\begin{array}{*{20}{c}} {{e^t}}&{t{e^t}}\\ 0&{{e^t}} \end{array}} \right]\)
Answer» D. \(\left[ {\begin{array}{*{20}{c}} {{e^t}}&{t{e^t}}\\ 0&{{e^t}} \end{array}} \right]\)


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