Find the Inverse, If It Exists, for the Matrix $$\left[ \begin{array} { r r } - 6 & 6 \\- 2 & - 5\end{array} \right]$$

question 181

Multiple Choice

Find the inverse, if it exists, for the matrix.
- $$\left[ \begin{array} { r r } - 6 & 6 \\- 2 & - 5\end{array} \right]$$

• A)
• \[\left[ \begin{array} { r }
• - \frac { 5 } { 42 } - \frac { 1 } { 7 } \\
• \frac { 1 } { 21 } - \frac { 1 } { 7 }
• \end{array} \right]\]
• B)
• \(\left[\begin{array}{c}
• -\frac{1}{7}-\frac{1}{7} \\
• \frac{1}{21}-\frac{5}{42}
• \end{array}\right]\)
• C)
• \(\left[\begin{array}{cc}
• -\frac{5}{42} & \frac{1}{7} \\
• -\frac{1}{21} & -\frac{1}{7}
• \end{array}\right]\)
• D)
• \(\left[\begin{array}{c}
• \frac{1}{21}-\frac{1}{7} \\
• -\frac{5}{42}-\frac{1}{7}
• \end{array}\right]\)

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