Use a Graphing Calculator to Find the Inverse of the Matrix

question 403

Multiple Choice

Use a graphing calculator to find the inverse of the matrix. Give five decimal places, if necessary.
- $$A = \left[ \begin{array} { c c } \sqrt { 3 } & - 4 \\\frac { 2 } { 7 } & 0.932\end{array} \right]$$

• A) \(\left[ \begin{array} { c c } 0.33803 & 1.45078 \\ - 0.10363 & 0.62821 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { c c } 0.57735 & - 0.25 \\ 3.5 & 1.07296 \end{array} \right]\)
• C)
• \[\left[ \begin{array} { l r }
• 1.97703 & - 8.48511 \\
• - 0.60608 & 3.67416
• \end{array} \right]\]
• D)
• \[\left[ \begin{array} { l l }
• 0 & 1 \\
• 1 & 0
• \end{array} \right]\]

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Definitions:

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Required Rates Of Return

Required rates of return are the minimum returns investors expect to receive from an investment to compensate for its perceived risk.