f \( A=\left[\begin{array}{rrr}1 & 2 & 0 \\ 3 & -4 & 5 \\ 0 & -1 & ...

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f \( A=\left[\begin{array}{rrr}1 & 2 & 0 \\ 3 & -4 & 5 \\ 0 & -1 & 3\end{array}\right] \), compute \( A^{2}-4 A+3 I_{3} \)
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