1. $M=\left[\begin{array}{cc}1& -2\\ -3& 5\end{array}\right]$

• A. $\left[\begin{array}{cc}5& 2\\ 3& 1\end{array}\right]$
• B. $\left[\begin{array}{cc}5& 2\\ 3& 1\end{array}\right]$
• C. $\left[\begin{array}{cc}5& 2\\ 3& 1\end{array}\right]$
• D. $\left[\begin{array}{cc}5& 2\\ 3& 1\end{array}\right]$

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