Exercício 5.3.12. Verifique se os seguintes conjuntos são base do espaço V. \left\{\left(\begin{array}{ll}1 & 0 \\\\ 0 & 0\end{array}\right),\left(\begin{array}{ll}0 & 1 \\\\ 1 & 0\end{array}\right),\left(\begin{array}{ll}0 & 0 \\\\ 0 & 1\end{array}\right)\right\}, onde V=\left\{\left(\begin{array}{ll}a & b \\\ b & c\end{array}\right), a, b, c \in \mathbb{R}\right\}.