Find the Inverse of a If It Has One, or State

question 215

Multiple Choice

Find the inverse of A if it has one, or state that the inverse does not exist.
- $$A = \left[ \begin{array} { l l l } 1 & 0 & 8 \\1 & 2 & 3 \\2 & 5 & 3\end{array} \right]$$

• A) Inverse does not exist
• B)
• \[\left[ \begin{array} { l l l }
• 1 & 1 & 2 \\
• 0 & 2 & 5 \\
• 8 & 3 & 3
• \end{array} \right]\]
• C)
• \[\left[ \begin{array} { r r r }
• - 1 & 0 & - 8 \\
• - 1 & - 2 & - 3 \\
• - 2 & - 5 & - 3
• \end{array} \right]\]
• D)
• \[\left[ \begin{array} { r r r }
• 9 & - 40 & 16 \\
• - 3 & 13 & - 5 \\
• - 1 & 5 & - 2
• \end{array} \right]\]

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Definitions:

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The unlawful act of buying and selling stocks for personal gain using privileged information that is not publicly available.