Ответ:
\((7\cdot5)^9=7^9\cdot5^9\).
\(\frac{7^{10}\cdot5^8}{7^9\cdot5^9}=7^{10-9}\cdot5^{8-9}=\frac{7}{5}\).
Ответ: \(\frac{7}{5}\).
\((7\cdot5)^9=7^9\cdot5^9\).
\(\frac{7^{10}\cdot5^8}{7^9\cdot5^9}=7^{10-9}\cdot5^{8-9}=\frac{7}{5}\).
Ответ: \(\frac{7}{5}\).