1.

If \[X=\left[ \begin{matrix} 1 & -2 \\ 0 & 3 \\ \end{matrix} \right]\], and I is a \[2\times 2\] identity matrix, then \[{{X}^{2}}-2X+3I\] equals to which one of the following?

A. #NAME?
B. -2X
C. 2X
D. 4X
Answer» D. 4X


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