# Question 3.6.11: Apply the formula in (23) to find the inverse of the matrix ...

Apply the formula in (23) to find the inverse of the matrix

\textbf{A} = \left [ \begin{matrix} 1 & 4 & 5 \\ 4 & 2 & 5 \\ -3 & 3 & -1 \end{matrix} \right ]

\textbf{A}^{-1} = \frac{[A_{ij}]^{T}}{|\textbf{A}|}, (23)

of Example 10, in which we saw that |**A**| = 29.

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