T=x⎝⎛−113⎠⎞+y⎝⎛0−12⎠⎞+z⎝⎛001⎠⎞
T=⎝⎛−1130−12001⎠⎞
T−1=⎝⎛−2130−22000⎠⎞
(T+1)2=⎝⎛013002002⎠⎞2=⎝⎛008004004⎠⎞
(T−1)(T+1)2=⎝⎛−2130−22000⎠⎞⎝⎛008004004⎠⎞=⎝⎛000000000⎠⎞
T satisfies the polynomial (x−1)(x+1)2
(T−1)(T+1)=⎝⎛−2130−22000⎠⎞⎝⎛013002002⎠⎞=⎝⎛0−22000000⎠⎞=⎝⎛000000000⎠⎞
∴ Minimal polynomial is (x−1)(x+1)2
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