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

question 26

Multiple Choice

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

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

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After-Tax Effect

The impact of transactions on a company's net income after accounting for taxes, reflecting the true financial outcome.

Interest Expense

Interest expense is the cost incurred by an entity for borrowed funds, reflected in the income statement as a financial charge.

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A balance sheet that presents financial figures as percentages of a total in order to facilitate year-over-year and company-to-company comparisons.

Significant Changes

Important alterations that can have a substantial impact on a company's operations, financial performance, or strategy.