第七題  謝謝

\(\begin{align}
  & \frac{1}{5}+\frac{1}{100}\sqrt{2} \\
& \frac{1}{5}+\frac{2}{100}\sqrt{2} \\
& \frac{1}{5}+\frac{3}{100}\sqrt{2} \\
\end{align}\)

謝謝大大^^