The inverse of a matrix A is given by \(\rm \begin{bmatrix} -2 & 1 \\ \frac{3}{2} & -\frac{1}{2} \end{bmatrix}\) What is A equal to?
1
\(\rm \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix}\)
2
\(\rm \begin{bmatrix} 1 & -2 \\ -3 & 4 \end{bmatrix}\)
3
\(\rm \begin{bmatrix} 1 & 2 \\ 3 & -4 \end{bmatrix}\)
4
\(\rm \begin{bmatrix} -1 & 2 \\ 3 & 4 \end{bmatrix}\)