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If $$A = \begin{bmatrix}3 & -4 \\1 & -1 \end{bmatrix}$$ then $$A^4 - A^3 + A^2 - A =$$
$$\begin{bmatrix}4 & -8 \\2 & -4 \end{bmatrix}$$
$$\begin{bmatrix}5 & -8 \\2 & -3 \end{bmatrix}$$
$$\begin{bmatrix}7 & -12 \\3 & 5 \end{bmatrix}$$
$$\begin{bmatrix}4 & -6 \\1 & -3 \end{bmatrix}$$
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