Find the Inverse of the Matrix $\left[ \begin{array} { c c } - 24 & 18 \\- 12 & 9\end{array} \right]$

question 7

Multiple Choice

Find the inverse of the matrix $\left[ \begin{array} { c c } - 24 & 18 \\- 12 & 9\end{array} \right]$ (if it exists) .

• A) \(\frac { 1 } { 12 } \left[ \begin{array} { c c }
• 9 & - 18 \\
• 12 & - 24
• \end{array} \right]\)
• B) \(- \frac { 1 } { 24 } \left[ \begin{array} { c c }
• 9 & - 18 \\
• 12 & - 24
• \end{array} \right]\)
• C) \(- \frac { 1 } { 18 } \left[ \begin{array} { c c }
• - 9 & 18 \\
• - 12 & 24
• \end{array} \right]\)
• D) \(\frac { 1 } { 9 } \left[ \begin{array} { c c }
• - 24 & 18 \\
• - 12 & 9
• \end{array} \right]\)
• E)does not exist

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