The inverse of the matrix [[ *20c 234 431 124 ]] is

[[ *20c - 24595 3 - 45 - 145 - 11565 ]]

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Linear Algebra

The inverse of the matrix \[\left[ {\begin{array}{*{20}{c}} 2&3&4 \\ 4&3&1 \\ 1&2&4 \end{array}} \right]\] is

A) \[\left[ {\begin{array}{*{20}{c}} {10}&{ - 4}&{ - 9} \\ { - 15}&4&{14} \\ 5&{ - 1}&{ - 6} \end{array}} \right]\] B) \[\left[ {\begin{array}{*{20}{c}} { - 10}&4&9 \\ {15}&{ - 4}&{ - 14} \\ { - 5}&1&6 \end{array}} \right]\] C) \[\left[ {\begin{array}{*{20}{c}} 2&{ - \frac{4}{5}}&{ - \frac{9}{5}} \\ { - 3}&{\frac{4}{5}}&{\frac{{14}}{5}} \\ 1&{ - \frac{1}{5}}&{ - \frac{6}{5}} \end{array}} \right]\] D) \[\left[ {\begin{array}{*{20}{c}} { - 2}&{\frac{4}{5}}&{\frac{9}{5}} \\ 3&{ - \frac{4}{5}}&{ - \frac{{14}}{5}} \\ { - 1}&{\frac{1}{5}}&{\frac{6}{5}} \end{array}} \right]\]

Answer & Solution

Correct Answer: Option D

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The inverse of the matrix left begin array 20 c 2&3&4...

The inverse of the matrix \[\left[ {\begin{array}{*{20}{c}} 2&3&4 \\ 4&3&1 \\ 1&2&4 \end{array}} \right]\] is

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