Find AB and BA $A = \left[ \begin{array} { r r } 2 & - 2 \\ - 3 & 9 \end{array} \right]$

question 52

Multiple Choice

Find AB and BA.
- $A = \left[ \begin{array} { r r } 2 & - 2 \\ - 3 & 9 \end{array} \right]$ and $B = \left[ \begin{array} { l l } 1 & 0 \\ 0 & 1 \end{array} \right]$

• A) \(A B = \left[ \begin{array} { r r } 2 & - 2 \\ - 3 & 9 \end{array} \right] ; B A = \left[ \begin{array} { r r } 2 & - 3 \\ - 2 & 9 \end{array} \right]\)
• B) \(A B = \left[ \begin{array} { l l } 2 & 0 \\ 0 & 9 \end{array} \right] ; B A = \left[ \begin{array} { l l } 2 & 0 \\ 0 & 9 \end{array} \right]\)
• C) \(A B = \left[ \begin{array} { r r } 2 & - 2 \\ - 3 & 9 \end{array} \right] ; B A = \left[ \begin{array} { r r } 2 & - 2 \\ - 3 & 9 \end{array} \right]\)
• D) \(A B = \left[ \begin{array} { l l } 1 & 0 \\ 0 & 1 \end{array} \right] ; B A = \left[ \begin{array} { l l } 1 & 0 \\ 0 & 1 \end{array} \right]\)

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The uncertainty and lack of clarity experienced by individuals when interacting with complex and new technology.

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A state of physical, emotional, and mental exhaustion caused by prolonged stress, especially in the workplace.

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Situations where expectations or requirements from different sources are in conflict, making it difficult to satisfy all of them simultaneously.

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A situation in which an individual is expected to fulfill more roles or tasks than is feasible, often leading to stress and decreased performance.