If \[A=\left[ \begin{matrix} 1 & 3 \\ 2 & 1 \\ \end{matrix} \right]\], then determinant of \[{{A}^{2}}-2A\]is [EAMCET 2000]

If \[A=\left[ \begin{matrix} 1 & 3 \\ 2 & 1 \\ \end{matrix} \right]\

1.	If \[A=\left[ \begin{matrix} 1 & 3 \\ 2 & 1 \\ \end{matrix} \right]\], then determinant of \[{{A}^{2}}-2A\]is [EAMCET 2000]
A.	5
B.	25
C.	-5
D.	-25
Answer» C. -5

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If \[A=\left[ \begin{matrix} 1 & 3 \\ 2 & 1 \\ \end{matrix} \right]\], then determinant of \[{{A}^{2}}-2A\]is [EAMCET 2000]

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