If \( A=\left[\begin{array}{cc}4 & 2 \\ -1 & 1\end{array}\right] \) and I is the identity matrix...

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If \( A=\left[\begin{array}{cc}4 & 2 \\ -1 & 1\end{array}\right] \) and I is the identity matrix of order 2 ,
\( \mathrm{P} \) then \( (\mathrm{A}-2 \mathrm{I})(\mathrm{A}-3 \mathrm{I})= \)

W
(1) I
(2) \( \mathrm{O} \)
(3) \( \left[\begin{array}{ll}1 & 0 \\ 0 & 0\end{array}\right] \)
(4) \( \left[\begin{array}{ll}0 & 0 \\ 0 & 1\end{array}\right] \)
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