Resposta:
Explicação passo a passo:
[tex]a)[/tex]
[tex]2\;.\:\left[\begin{array}{ccc}10&3\\1&2\\\end{array}\right] =\left[\begin{array}{ccc}20&6\\2&4\\\end{array}\right][/tex]
[tex]b)[/tex]
[tex]5\;.\:\left[\begin{array}{ccc}1&5\\2&0\\-2&1\end{array}\right] =\left[\begin{array}{ccc}5&25\\10&0\\-10&5\end{array}\right][/tex]
[tex]c)[/tex]
[tex](-3)\;.\:\left[\begin{array}{ccc}10&3\\1&2\\\end{array}\right] =\left[\begin{array}{ccc}-30&-9\\-3&-6\\\end{array}\right][/tex]
