Question
Write A–1 for A = $\begin{bmatrix} 2 & 5 \\ 1 & 3 \\ \end{bmatrix}$.
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$\text{f(x)}=[\text{x}]\text{ for x}\in[5,\ 9]$
$\begin{bmatrix}1&-1\\2&3\end{bmatrix}$