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rc test series

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If A=$\begin{bmatrix} 1 & 2\\ -1& 3 \end{bmatrix}$

then $\ A^{6} -4A^{5}+8A^{4}-12A^{3}+14A^{2}$=?

a)0

b)4A

c)4A+5I

d)-4A+5I

am gettind d

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