Find the adjoint of the matrix: $\begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix}$
- A$\begin{bmatrix} 4 & 2 \\ -3 & 1 \end{bmatrix}$
- B$\begin{bmatrix} -4 & -2 \\ -3 & 1 \end{bmatrix}$
- C$\begin{bmatrix} 4 & -2 \\ -3 & 1 \end{bmatrix}$
- D$\begin{bmatrix} 4 & -2 \\ 3 & 1 \end{bmatrix}$
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Medium
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