Find the Inverse, If It Exists, for the Matrix $$\left[ \begin{array} { l l l } 1 & - 2 & 5 \\1 & - 1 & 2 \\2 & - 3 & 7\end{array} \right]$$

question 496

Multiple Choice

Find the inverse, if it exists, for the matrix.
- $$\left[ \begin{array} { l l l } 1 & - 2 & 5 \\1 & - 1 & 2 \\2 & - 3 & 7\end{array} \right]$$

• A) The inverse does not exist.
• B)
• \[\left[ \begin{array} { c c c }
• 1 & 1 & 2 \\
• - 2 & - 1 & - 3 \\
• 5 & 2 & 7
• \end{array} \right]\]
• C)
• \(\left[\begin{array}{lll}
• 1 & 0 & -1 \\
• 0 & 1 & -3 \\
• 0 & 3 & 0
• \end{array}\right]\)
• D)
• \(\left[\begin{array}{ccc}
• 1 & 0 & -1 \\
• 0 & 1 & -3 \\
• 0 & 0 & 0
• \end{array}\right]\)

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