Find the Products AB and BA to Determine Whether B $\mathrm { A } = \left[ \begin{array} { r r } 4 & - 3 \\ - 4 & 0 \end{array} \right]$

question 151

Multiple Choice

Find the products AB and BA to determine whether B is the multiplicative inverse of A.
- $\mathrm { A } = \left[ \begin{array} { r r } 4 & - 3 \\ - 4 & 0 \end{array} \right]$

• A)
• \(\left[ \begin{array} { r } 0 - \frac { 1 } { 4 } \\ - \frac { 1 } { 3 } - \frac { 1 } { 3 } \end{array} \right]\)
• B)
• \(\left[ \begin{array} { c r } 0 & \frac { 1 } { 4 } \\ \frac { 1 } { 3 } & - \frac { 1 } { 3 } \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r } - \frac { 1 } { 3 } - \frac { 1 } { 3 } \\ 0 - \frac { 1 } { 4 } \end{array} \right]\)
• D)
• \(\left[\begin{array}{c}
• -\frac{1}{3}-\frac{1}{4} \\
• -\frac{1}{3} 0
• \end{array}\right]\)

Apply the concepts of vertical and horizontal financial statement analysis.

Assess short-term and long-term credit risk and profitability ratios between companies.

Calculate sales trend percentages and understand their implications.

Understand the building blocks and general-purpose of financial statements.

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