A) \[\left[ \begin{matrix} 1 & -2 \\ -3 & 5 \\ \end{matrix} \right]\]
B) \[\left[ \begin{matrix} -1 & 2 \\ 3 & -5 \\ \end{matrix} \right]\]
C) \[\left[ \begin{matrix} -1 & -2 \\ -3 & -5 \\ \end{matrix} \right]\]
D) \[\left[ \begin{matrix} 1 & 2 \\ 3 & 5 \\ \end{matrix} \right]\]
Correct Answer: B
Solution :
Since\[\left[ \begin{matrix} 5 & 2 \\ 3 & 1 \\ \end{matrix} \right]\,\left[ \begin{matrix} -1 & 2 \\ 3 & -5 \\ \end{matrix} \right]\,=\left[ \begin{matrix} 1 & 0 \\ 0 & 1 \\ \end{matrix} \right]\].You need to login to perform this action.
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