Macierze odwrotne - z macierzy 3 i 4 stopnia

[mostostalek]

\(\displaystyle{ A^{-1}=\begin{bmatrix}-\frac{7}{43}& \frac{10}{43} & \frac{13}{43}& -\frac{2}{43} \\\frac{2}{43}& -\frac{9}{43} & -\frac{16}{43} & \frac{19}{43} \\ \frac{14}{43} & -\frac{20}{43} & \frac{17}{43} & \frac{4}{43} \\ \frac{1}{43} & \frac{17}{43} & -\frac{8}{43} &- \frac{12}{43} \end{bmatrix}}\) naturalnie w \(\displaystyle{ \mathbb{Q}}\)-- 21 listopada 2011, 01:17 --\(\displaystyle{ A^{-1}=\begin{bmatrix}0& 3 & 6& 5 \\2& 5 &5 & 5 \\ 0 & 1 &3 & 4 \\ 1 & 3 & 6 &2 \end{bmatrix} \hbox{ w } \mathbb{F}_7}\)