Which of the following matrices is the inverse of A=(1234)A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}A=(1324)?
(−211.5−0.5)\begin{pmatrix} -2 & 1 \\ 1.5 & -0.5 \end{pmatrix}(−21.51−0.5)
(4−2−31)\begin{pmatrix} 4 & -2 \\ -3 & 1 \end{pmatrix}(4−3−21)
(1324)\begin{pmatrix} 1 & 3 \\ 2 & 4 \end{pmatrix}(1234)
(−123−4)\begin{pmatrix} -1 & 2 \\ 3 & -4 \end{pmatrix}(−132−4)