Resposta :
Olá, Nandinha.
[tex]a_{11}=0,a_{12}=1,a_{21}=1,a_{22}=0\\\\A=\left[\begin{array}{cc}a_{11}&a_{12}\\a_{21}&a_{22}\end{array}\right] =\left[\begin{array}{cc} 0&1\\1&0\end{array}\right] [/tex]
[tex]a_{11}=0,a_{12}=1,a_{21}=1,a_{22}=0\\\\A=\left[\begin{array}{cc}a_{11}&a_{12}\\a_{21}&a_{22}\end{array}\right] =\left[\begin{array}{cc} 0&1\\1&0\end{array}\right] [/tex]