Find the Inverse of A $A = \left[ \begin{array} { c c } 2 & 3 \\- 4 & 1\end{array} \right]$

question 141

Multiple Choice

Find the inverse of A.
$A = \left[ \begin{array} { c c } 2 & 3 \\- 4 & 1\end{array} \right]$

• A) \(A ^ { - 1 } = \left[ \begin{array} { c c }
• \frac { 1 } { 7 } & - \frac { 3 } { 7 } \\
• \frac { 2 } { 7 } & \frac { 1 } { 7 }
• \end{array} \right]\)
• B) \(A ^ { - 1 } = \left[ \begin{array} { c c }
• \frac { 1 } { 14 } & - \frac { 3 } { 14 } \\
• \frac { 2 } { 7 } & \frac { 1 } { 7 }
• \end{array} \right]\)
• C) \(A ^ { - 1 } = \left[ \begin{array} { c c }
• \frac { 1 } { 14 } & - \frac { 3 } { 7 } \\
• \frac { 2 } { 7 } & \frac { 1 } { 14 }
• \end{array} \right]\)
• D) \(A ^ { - 1 } = \left[ \begin{array} { c c }
• \frac { 1 } { 14 } & \frac { 3 } { 14 } \\
• \frac { 2 } { 7 } & \frac { 1 } { 7 }
• \end{array} \right]\)
• E) \(A ^ { - 1 } = \left[ \begin{array} { c c }
• \frac { 1 } { 7 } & - \frac { 3 } { 7 } \\
• \frac { 2 } { 14 } & \frac { 1 } { 14 }
• \end{array} \right]\)

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Definitions:

Depreciation

The systematic allocation of the depreciable amount of an asset over its useful life.

Balance Sheet

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Vertical Analysis

A financial analysis method that expresses each item in a financial statement as a percentage of a base figure, facilitating ratio comparisons across companies and time periods.

Revenue Recognition Principle

An accounting principle that outlines the specific conditions under which revenue is recognized and dictates that revenue should be recognized in the accounting period in which it is earned.