Question Number 145101 by alcohol last updated on 02/Jul/21
Commented by alcohol last updated on 02/Jul/21
$${Correction}\:{please} \\ $$$${A}\:=\begin{pmatrix}{\mathrm{1}}&{\mathrm{1}}\\{\mathrm{3}}&{−\mathrm{1}}\end{pmatrix} \\ $$$${please}\:{help}\:{me}\:{solve}\:{it}\: \\ $$