Find the Inverse of the Matrix $$\left[ \begin{array} { c c c } 1 & 0 & 5 \\1 & 1 & 5 \\- 5 & 1 & 1\end{array} \right]$$

question 52

Multiple Choice

Find the inverse of the matrix.​ $$\left[ \begin{array} { c c c } 1 & 0 & 5 \\1 & 1 & 5 \\- 5 & 1 & 1\end{array} \right]$$ ​

• A)​​ \[\left[ \begin{array} { c c c }
• - 29 & 5 & - 5 \\
• - 1 & 1 & 0 \\
• 6 & 1 & 1
• \end{array} \right]\]
• B) \[\left[ \begin{array} { c c c }
• 4 & \frac { 5 } { 26 } & - \frac { 5 } { 26 } \\
• 1 & 1 & 0 \\
• \frac { 6 } { 26 } & - \frac { 1 } { 26 } & \frac { 1 } { 26 }
• \end{array} \right]\]
• C)​ \[\left[ \begin{array} { c c c }
• - \frac { 4 } { 26 } & \frac { 5 } { 26 } & - \frac { 5 } { 26 } \\
• - 1 & 1 & 0 \\
• \frac { 6 } { 26 } & - \frac { 1 } { 26 } & \frac { 1 } { 26 }
• \end{array} \right]\]
• D)​ \[\left[ \begin{array} { c c c }
• 29 & 5 & - 5 \\
• - 1 & 1 & - 1 \\
• 6 & - 1 & 1
• \end{array} \right]\]
• E)​ \[\left[ \begin{array} { c c c }
• 29 & 5 & - 5 \\
• - 1 & 1 & 1 \\
• 6 & - 1 & 1
• \end{array} \right]\]

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