Find the Inverse, If It Exists, for the Matrix $$\left[ \begin{array} { l l l } 8 & - 5 & 4 \\15 & - 9 & 8 \\7 & - 4 & 4\end{array} \right]$$

question 152

Multiple Choice

Find the inverse, if it exists, for the matrix.
- $$\left[ \begin{array} { l l l } 8 & - 5 & 4 \\15 & - 9 & 8 \\7 & - 4 & 4\end{array} \right]$$

• A) The inverse does not exist.
• B)
• \[\left[ \begin{array} { l c c }
• 8 & 15 & 7 \\
• - 5 & - 9 & - 4 \\
• 4 & 8 & 4
• \end{array} \right]\]
• C)
• \[\left[ \begin{array} { l l l }
• \frac { 4 } { 15 } & \frac { 2 } { 15 } & \frac { -5 } { 4 } \\
• \frac { 7 } { 15 } & \frac { 10 } { 9 } & \ { 1 } \\
• \frac { 8 } { 7 } & - \ { 1 } & \frac { 1 } { 4 }
• \end{array} \right]\]
• D)
• \[\left[ \begin{array} { l l l }
• \frac { 1 } { 8 } & \frac { 1 } { 15 } & \frac { 1 } { 4 } \\
• \frac { 1 } { 15 } & - \frac { 1 } { 9 } & \frac { 1 } { 8 } \\
• \frac { 1 } { 7 } & - \frac { 1 } { 4 } & \frac { 1 } { 4 }
• \end{array} \right]\]

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