Find the Inverse of the Matrix $\left[ \begin{array} { c c } 8 & 16 \\ - 24 & - 40 \end{array} \right]$

question 56

Multiple Choice

Find the inverse of the matrix $\left[ \begin{array} { c c } 8 & 16 \\ - 24 & - 40 \end{array} \right]$ .

• A) \(\frac { 1 } { 7 } \left[ \begin{array} { c c } 8 & 16 \\ - 24 & - 40 \end{array} \right]\)
• B) \(\frac { 1 } { 8 } \left[ \begin{array} { c c } - 5 & - 2 \\ 3 & 1 \end{array} \right]\)
• C) \(\left[ \begin{array} { c c } - 8 & - 16 \\ 40 & 24 \end{array} \right]\)
• D) \(\left[ \begin{array} { c c } 8 & - 24 \\ 32 & - 56 \end{array} \right]\)
• E) \(\frac { 1 } { 13 } \left[ \begin{array} { c c } - 8 & - 16 \\ - 24 & 40 \end{array} \right]\)

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