Questão 2112861

\(\begin{bmatrix} \frac{1}{4}&\frac{\sqrt{15}}{4} \\ \frac{-\sqrt{15}}{4}&\frac{1}{4} \end{bmatrix}\)

\(\begin{bmatrix} \frac{1}{3}&\frac{2\sqrt{2}}{3} \\ \frac{2\sqrt{2}}{3}&\frac{1}{3} \end{bmatrix}\)

\(\begin{bmatrix} \frac{1}{7}&\frac{-2}{7} \\ \frac{-2}{7}&\frac{1}{7} \end{bmatrix}\)

\(\begin{bmatrix} \frac{3}{5}&\frac{4}{5} \\ \frac{4}{5}&\frac{3}{5} \end{bmatrix}\)

\(\begin{bmatrix} 0,53&0,47 \\ -0,47&0,53 \end{bmatrix}\)