For the system described by the state equation ˙x=⎡⎢⎣0100010.512⎤⎥⎦x+⎡⎢⎣001⎤⎥⎦u
If the control signal u is given by u=[−0.5−3−5]x+v, then the eigen values of the closed-loop system will be
A
0,−1,−2
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B
0,−1,−3
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C
−1,−1,−2
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D
0,−1,−1
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Solution
The correct option is A0,−1,−2 ˙x=⎡⎢⎣0100010.512⎤⎥⎦x+⎡⎢⎣001⎤⎥⎦[−0.5−3−5]x+v ∴˙x=⎡⎢⎣0100010−2−3⎤⎥⎦x+v
Characteristic equation λ3+3λ2+2λ+0=0 ⇒λ=0,−1,−2