\[\boxed{\text{161\ (161).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[\textbf{а)}\ \sqrt[9]{512} = \sqrt[9]{2^{9}} = 2\]
\[\textbf{б)}\ \sqrt[3]{1331} = \sqrt[3]{11^{3}} = 11\]
\[\textbf{в)}\ \sqrt[8]{0} = 0\]
\[\textbf{г)}\ \sqrt[5]{- 243} = \sqrt[5]{- 3^{5}} = - 3\]
\[\textbf{д)}\ \sqrt[4]{\frac{16}{625}} = \sqrt[4]{\frac{2^{4}}{5^{4}}} = \frac{2}{5}\]
\[\textbf{е)}\ \sqrt[6]{\frac{64}{729}} = \sqrt[6]{\frac{2^{6}}{3^{6}}} = \frac{2}{3}\]