Use a Graphing Calculator to Find the Inverse of the Matrix.​

question 54

Multiple Choice

Use a graphing calculator to find the inverse of the matrix.​ $$\left[ \begin{array} { l l l l } 1 & 4 & 8 & 3 \\0 & 1 & 4 & 8 \\0 & 0 & 1 & 4 \\0 & 0 & 0 & 1\end{array} \right]$$ ​ ​

• A)​ \[\left[ \begin{array} { c c c c }
• 1 & 4 & 8 & - 3 \\
• 0 & 1 & - 4 & 8 \\
• 0 & 0 & 1 & 4 \\
• 0 & 0 & 0 & 1
• \end{array} \right]\]
• B)​ \[\left[ \begin{array} { c c c c }
• 1 & - 4 & 8 & 3 \\
• 0 & 1 & - 4 & 8 \\
• 0 & 0 & 1 & - 4 \\
• 0 & 0 & 0 & 1
• \end{array} \right]\]
• C)​ \[\left[ \begin{array} { c c c c }
• 1 & - 4 & - 8 & - 3 \\
• 0 & 1 & - 4 & - 8 \\
• 0 & 0 & 1 & - 4 \\
• 0 & 0 & 0 & 1
• \end{array} \right]\]
• D)​ \[\left[ \begin{array} { c c c c }
• 1 & - 4 & 8 & - 3 \\
• 0 & 1 & - 4 & 8 \\
• 0 & 0 & 1 & - 4 \\
• 0 & 0 & 0 & 1
• \end{array} \right]\]
• E)​ \[\left[ \begin{array} { c c c c }
• 1 & 4 & 8 & - 3 \\
• 0 & 1 & 4 & 8 \\
• 0 & 0 & 1 & 4 \\
• 0 & 0 & 0 & 1
• \end{array} \right]\]

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