2) $$\frac{7}{8} \cdot \frac{4}{35} \cdot \frac{10}{9} =$$ e) $$(\frac{7}{2} \div \frac{3}{4})^{-\frac{5}{3}} = $$

Выполним действия. 2) $$\frac{7}{8} \cdot \frac{4}{35} \cdot \frac{10}{9} = \frac{7 \cdot 4 \cdot 10}{8 \cdot 35 \cdot 9} = \frac{7 \cdot 4 \cdot 2 \cdot 5}{4 \cdot 2 \cdot 7 \cdot 5 \cdot 9} = \frac{1}{9}$$ e) $$(\frac{7}{2} \div \frac{3}{4})^{-\frac{5}{3}} = (\frac{7}{2} \cdot \frac{4}{3})^{-\frac{5}{3}} = (\frac{7 \cdot 4}{2 \cdot 3})^{-\frac{5}{3}} = (\frac{7 \cdot 2}{3})^{-\frac{5}{3}} = (\frac{14}{3})^{-\frac{5}{3}} = (\frac{3}{14})^{\frac{5}{3}} = \sqrt[3]{(\frac{3}{14})^5} = \sqrt[3]{\frac{3^5}{14^5}} = \sqrt[3]{\frac{243}{537824}}$$