Find the Products AB and BA to Determine Whether B $$A = \left[ \begin{array} { r r } 1 & 2 \\0 & - 6\end{array} \right]$$

question 111

Multiple Choice

Find the products AB and BA to determine whether B is the multiplicative inverse of A.
- $$A = \left[ \begin{array} { r r } 1 & 2 \\0 & - 6\end{array} \right]$$

• A)
• \[\left[ \begin{array} { r r }
• 1 & \frac { 1 } { 3 } \\
• 0 & - \frac { 1 } { 6 }
• \end{array} \right]\]
• B)
• \(\left[ \begin{array} { l } 1 - \frac { 1 } { 3 } \\ 0 - \frac { 1 } { 6 } \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r } 0 & - \frac { 1 } { 6 } \\ 1 & \frac { 1 } { 3 } \end{array} \right]\)
• D)
• \(\left[ \begin{array} { r r } - \frac { 1 } { 6 } & \frac { 1 } { 3 } \\ 0 & 1 \end{array} \right]\)

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