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Use Row Reduction to Find the Inverse of the Given [141454145]\left[ \begin{array} { c c c } 1 & 4 & - 1 \\4 & 5 & - 4 \\- 1 & 4 & 5\end{array} \right]

Question 142

Multiple Choice

Use row reduction to find the inverse of the given matrix, if it exists, and check your answer by multiplication. [141454145]\left[ \begin{array} { c c c } 1 & 4 & - 1 \\4 & 5 & - 4 \\- 1 & 4 & 5\end{array} \right]


A) [4144611144111110214421114]\left[ \begin{array} { c c c } - \frac { 41 } { 44 } & \frac { 6 } { 11 } & \frac { 1 } { 4 } \\\frac { 4 } { 11 } & - \frac { 1 } { 11 } & 0 \\- \frac { 21 } { 44 } & \frac { 2 } { 11 } & \frac { 1 } { 4 }\end{array} \right]

B) [2526413192681311341312012]\left[ \begin{array} { c c c } - \frac { 25 } { 26 } & \frac { 4 } { 13 } & \frac { 19 } { 26 } \\\frac { 8 } { 13 } & - \frac { 1 } { 13 } & \frac { 4 } { 13 } \\- \frac { 1 } { 2 } & 0 & \frac { 1 } { 2 }\end{array} \right]

C) [4144411214461111121114014]\left[ \begin{array} { c c c } - \frac { 41 } { 44 } & \frac { 4 } { 11 } & \frac { 21 } { 44 } \\\frac { 6 } { 11 } & - \frac { 1 } { 11 } & \frac { 2 } { 11 } \\- \frac { 1 } { 4 } & 0 & \frac { 1 } { 4 }\end{array} \right]

D) [2526813124131130192641312]\left[ \begin{array} { c c c } - \frac { 25 } { 26 } & \frac { 8 } { 13 } & \frac { 1 } { 2 } \\\frac { 4 } { 13 } & - \frac { 1 } { 13 } & 0 \\- \frac { 19 } { 26 } & \frac { 4 } { 13 } & \frac { 1 } { 2 }\end{array} \right]

E) The inverse matrix does not exist.

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