Find the Inverse of the Matrix, If It Exists
- $$A = \left[ \begin{array} { r r } - 3 & - 4 \\3 & - 4\end{array} \right]$$

question 48

Multiple Choice

Find the inverse of the matrix, if it exists
- $$A = \left[ \begin{array} { r r } - 3 & - 4 \\3 & - 4\end{array} \right]$$

• A) \[\left[ \begin{array} { r r } - \frac { 1 } { 8 } & \frac { 1 } { 6 } \\ - \frac { 1 } { 8 } & - \frac { 1 } { 6 } \end{array} \right]\]
• B) \(\left[\begin{array}{cc} -\frac{1}{6} & \frac{1}{6} \\ -\frac{1}{8} & -\frac{1}{8} \end{array}\right]\)
• D) \(\left[\begin{array}{c} -\frac{1}{6}-\frac{1}{6} \\ \frac{1}{8}-\frac{1}{8} \end{array}\right]\)

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Definitions:

Depreciation

The systematic allocation of the cost of a tangible asset over its useful life, reflecting its consumption, wear and tear, or obsolescence.

Tax Impact

The effect of taxation on an individual's or company's financial situation, including tax liabilities and planning.

Incremental Cash Flow

Incremental cash flow is the additional cash flow a company receives from taking on a new project or investment, used to assess its profitability.

Sunk Costs

Expenses that have already been incurred and cannot be recovered or changed, and therefore should not influence future decisions.