Determine, se possível, as matrizes inversas das matrizes abaixo:
(a)
\left[\begin{array}{cc}1 & 0 \\\\ -2 & -2\end{array}\right]
(b)
\left[\begin{array}{cc}4 & -7 \\\\ -1 & -3\end{array}\right]
(c)
\left[\begin{array}{ccc}3 & 1 & 2 \\\\ -2 & -4 & -5 \\\\ 2 & 4 & -5\end{array}\right]
(d)
\left[\begin{array}{ccc}1 & -1 & 0 \\\\ 2 & 1 & 0 \\\\ 1 & -1 & -9\end{array}\right]
(e)
\left[\begin{array}{ccc}-1 & 1 & 2 \\\\ 3 & 1 & -2 \\\\ 2 & -1 & 3\end{array}\right]
(f)
\left[\begin{array}{lll}1 & 0 & 6 \\\\ 2 & 1 & 1 \\\\ 7 & 1 & 0\end{array}\right]
(g)
\left[\begin{array}{cccc}1 & 0 & 0 & -1 \\\\ 0 & 2 & 0 & 0 \\\\ -1 & 3 & 2 & 0 \\\\ -1 & 1 & -2 & 1\end{array}\right]
(h)
\left[\begin{array}{cccc}-2 & -1 & 0 & 0 \\\\ 3 & 0 & -1 & 1 \\\\ -1 & 2 & -2 & 8 \\\\ -3 & 0 & 7 & 1\end{array}\right]
(i)
\left[\begin{array}{cc}3 & 5 \\\\ -2 & -3\end{array}\right]
(j)
\left[\begin{array}{cc}5 & -2 \\\\ -8 & 4\end{array}\right]
(n)
\left[\begin{array}{ccc}1 & 3 & 2 \\\\ 4 & 1 & -2 \\\\ 2 & 1 & 3\end{array}\right]
(o)
\left[\begin{array}{ccc}2 & -1 & 2 \\\\ 1 & 3 & 2 \\\\ 5 & 1 & 6\end{array}\right]
®
\left[\begin{array}{cccc}2 & 1 & -2 & 0 \\\\ 0 & 0 & -2 & -1 \\\\ 2 & -1 & 1 & 0 \\\\ 3 & 0 & 3 & 0\end{array}\right]
(s)
\left[\begin{array}{ccccc}2 & 0 & 0 & 1 & -2 \\\\ 0 & 1 & 0 & 0 & 1 \\\\ 0 & 0 & 2 & 0 & 0 \\\\ 0 & 0 & 0 & 3 & 2 \\\\ 0 & 0 & 0 & 0 & 3\end{array}\right]
(1)
\left[\begin{array}{lll}3 & 1 & 2 \\\\ 2 & 4 & 5 \\\\ 2 & 4 & 5\end{array}\right]
(m)
\left[\begin{array}{ccc}4 & 3 & 0 \\\\ 3 & 1 & 2 \\\\ 5 & -1 & -4\end{array}\right]
§
\left[\begin{array}{cccc}2 & 0 & 0 & 1 \\\\ 0 & 1 & 0 & 0 \\\\ 1 & 6 & 2 & 0 \\\\ 1 & 1 & -2 & 3\end{array}\right]
(q)
\left[\begin{array}{cccc}2 & 1 & 2 & 1 \\\\ 3 & 0 & 1 & 1 \\\\ -1 & 2 & -2 & 1 \\\\ -3 & 2 & 3 & 1\end{array}\right]
(t)
\left[\begin{array}{cccc}-1 & 0 & 0 & 0 \\\\ 4 & 1 & 0 & 0 \\\\ 0 & 1 & 3 & 0 \\\\ 1 & 1 & 3 & -1\end{array}\right]
(u)
\left[\begin{array}{cccc}1 & 0 & 1 & 0 \\\\ 0 & 1 & 0 & -1 \\\\ 1 & 0 & -1 & 0 \\\\ 0 & -1 & 0 & 1\end{array}\right]