Questão 768934

\(\begin{bmatrix} 1 & 0 \\ 0 & 1 \\ \end{bmatrix}\)

\(\begin{bmatrix} 4 & 2 \\ 5 & 5 \\ \end{bmatrix}\)

\(\frac{1}{2}\) \(\begin{bmatrix} 48 & 30 \\ 75 & 63 \\ \end{bmatrix}\)

\(\frac{1}{5}\) \(\begin{bmatrix} 43 & 27 \\ 71 & 55 \\ \end{bmatrix}\)

\(\begin{bmatrix} 9 & 4\\ 25 & 16\\ \end{bmatrix}\)