Find the adjoint of each of the matrices `[{:(1,2),(3,4):}]`

Explanation

To find the adjoint of the matrix \(\begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}\), we will follow these steps:

### Step 1: Find the Minors
The minor \(M_{ij}\) of an element \(a_{ij}\) in a matrix is the determinant of the submatrix formed by deleting the \(i\)-th row and \(j\)-th column.

1. **Minor \(M_{11}\)**: Remove the 1st row and 1st column:
\[
M_{11} = \begin{vmatrix} 4 \end{vmatrix} = 4
...