Title: Inverse Matrix. Beispiel 3

Authors: Yevheniia Andriichenko (Originator)
Licence: CC BY 4.0

Q: Berechne \(A^{-1}\) für:

\(A =\begin{pmatrix}
2&1  \\
1&1
\end{pmatrix}\)
- \begin{pmatrix}1 & -1 \\ -1 & 2\end{pmatrix} (correct)
- \begin{pmatrix}-1& 0 \\ 2& 4\end{pmatrix} (\(A^{-1}=\frac{1}{det(A)}\begin{pmatrix}d & -b \\-c & a\end{pmatrix}\))
- \begin{pmatrix}-2 & 3 \\ 2 & -1\end{pmatrix} (\(A^{-1}=\frac{1}{det(A)}\begin{pmatrix}d & -b \\-c & a\end{pmatrix}\))