Find the Inverse, If It Exists, for the Matrix $$\left[ \begin{array} { l l l } 7 & - 5 & 2 \\14 & - 9 & 4 \\7 & - 4 & 2\end{array} \right]$$

question 189

Multiple Choice

Find the inverse, if it exists, for the matrix.
- $$\left[ \begin{array} { l l l } 7 & - 5 & 2 \\14 & - 9 & 4 \\7 & - 4 & 2\end{array} \right]$$

• A) The inverse does not exist.
• B)
• \[\left[ \begin{array} { l l l }
• 7 & 14 & 7 \\
• - 5 & - 9 & - 4 \\
• 2 & 4 & 2
• \end{array} \right]\]
• C)
• \[\left[ \begin{array} { l l l }
• \frac { 1 } { 7 } & \frac { 1 } { 7 } & - \frac { 5 } { 2 } \\
• \frac { 1 } { 2 } & \frac { 10 } { 9 } & \frac { 7 } { 4 } \\
• 1 & - \frac { 1 } { 2 } & \frac { 1 } { 2 }
• \end{array} \right]\]
• D)
• \[\left[ \begin{array} { c c c }
• \frac { 1 } { 7 } & \frac { 1 } { 14 } & \frac { 1 } { 2 } \\
• \frac { 1 } { 14 } & - \frac { 1 } { 9 } & \frac { 1 } { 4 } \\
• \frac { 1 } { 7 } & - \frac { 1 } { 4 } & \frac { 1 } { 2 }
• \end{array} \right]\]

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