9. \(\frac{(4\sqrt{2})^2}{64}\)

\[\frac{(4\sqrt{2})^2}{64}=\frac{4^2\cdot(\sqrt{2})^2}{64}=\frac{16\cdot2}{64}=\frac{32}{64}=\frac{1}{2}.\]

Ответ: \(\frac{1}{2}\).