What is the result of swapping row 1 and row 2 of A=(1324)A = \begin{pmatrix} 1 & 3 \\ 2 & 4 \end{pmatrix}A=(1234)?
(2413)\begin{pmatrix} 2 & 4 \\ 1 & 3 \end{pmatrix}(2143)
(1324)\begin{pmatrix} 1 & 3 \\ 2 & 4 \end{pmatrix}(1234)
(4231)\begin{pmatrix} 4 & 2 \\ 3 & 1 \end{pmatrix}(4321)
(2143)\begin{pmatrix} 2 & 1 \\ 4 & 3 \end{pmatrix}(2413)