Find adjoint of the matrice in`[(1, 2),( 3, 4)]`

Explanation

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

### Step 1: Define the matrix
Let
\[ A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix} \]

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