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Use a Graphing Calculator to Find the Inverse of the Matrix

Question 74

Multiple Choice

Use a graphing calculator to find the inverse of the matrix. Give five decimal places, if necessary.
- A=[1/32/74/517/115018/135/68/7]\mathrm { A } = \left[ \begin{array} { c c c } 1 / 3 & 2 / 7 & 4 / 5 \\17 / 11 & 5 & 0 \\18 / 13 & - 5 / 6 & 8 / 7\end{array} \right]


A)
[1.105570.192160.773900.341720.140610.239201.588610.130280.23703]\left[ \begin{array} { r r r } - 1.10557 & 0.19216 & 0.77390 \\0.34172 & 0.14061 & - 0.23920 \\1.58861 & - 0.13028 & - 0.23703\end{array} \right]
B)
[001010100]\left[ \begin{array} { l l l } 0 & 0 & 1 \\0 & 1 & 0 \\1 & 0 & 0\end{array} \right]

C)
[33.51.250.64706500.722221.21.14286]\left[ \begin{array} { c c c } 3 & 3.5 & 1.25 \\0.64706 & 5 & 0 \\0.72222 & - 1.2 & 1.14286\end{array} \right]
D)

[2.659520.158301.861679.042380.338246.329663.371290.054841.48490]\left[ \begin{array} { r r r } 2.65952 & 0.15830 & - 1.86167 \\- 9.04238 & - 0.33824 & 6.32966 \\3.37129 & 0.05484 & - 1.48490\end{array} \right]

Correct Answer:

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