Let A = \(\rm \begin{bmatrix}3&-1\\\ 2&4\end{bmatrix}\), then adjoint (A) is:
1
\(\rm \begin{bmatrix}3&2\\\ -1&4\end{bmatrix}\)
2
\(\rm \begin{bmatrix}4&-1\\\ 2&3\end{bmatrix}\)
3
\(\rm \begin{bmatrix}-4&1\\\ -2&-3\end{bmatrix}\)
4
\(\rm \begin{bmatrix}4&1\\\ -2&3\end{bmatrix}\)