Find the Inverse of the Matrix $\left[ \begin{array} { c c } - 2 & 1 \\5 & 4\end{array} \right]$

question 106

Multiple Choice

Find the inverse of the matrix $\left[ \begin{array} { c c } - 2 & 1 \\5 & 4\end{array} \right]$ (if it exists) .

• A) \(\frac { 1 } { 13 } \left[ \begin{array} { c c }
• 4 & - 1 \\
• - 5 & - 2
• \end{array} \right]\)
• B) \(- \frac { 1 } { 13 } \left[ \begin{array} { c c }
• 4 & - 1 \\
• - 5 & - 2
• \end{array} \right]\)
• C) \(- \frac { 1 } { 13 } \left[ \begin{array} { c c }
• - 4 & 1 \\
• 5 & 2
• \end{array} \right]\)
• D) \(- \frac { 1 } { 13 } \left[ \begin{array} { c c }
• - 2 & 1 \\
• 5 & 4
• \end{array} \right]\)
• E)does not exist

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