Find the Inverse of the Matrix $$\left[ \begin{array} { c c } - 8 & 14 \\- 4 & 7\end{array} \right]$$

question 23

Multiple Choice

Find the inverse of the matrix $$\left[ \begin{array} { c c } - 8 & 14 \\- 4 & 7\end{array} \right]$$ (if it exists) .

• A)​ \[\frac { 1 } { 4 } \left[ \begin{array} { l l }
• 7 & - 14 \\
• 4 & - 8
• \end{array} \right]\]
• B)​ \[- \frac { 1 } { 8 } \left[ \begin{array} { c c }
• 7 & - 14 \\
• 4 & - 8
• \end{array} \right]\]
• C)​ \[- \frac { 1 } { 4 } \left[ \begin{array} { c c }
• - 7 & - 14 \\
• 4 & 8
• \end{array} \right]\]
• D)​ \[\frac { 1 } { 7 } \left[ \begin{array} { c c }
• - 8 & 14 \\
• - 4 & 7
• \end{array} \right]\]
• E)does not exist

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