Ответ:

а) \((a^5)^2:(a^3)^2=a^{10}:a^6=a^4\).

б) \(\left(\frac{a^3}{b^4}\right)^4:\left(\frac{a}{b^2}\right)^4=\left(\frac{a^3}{b^4}:\frac{a}{b^2}\right)^4=\left(\frac{a^2}{b^2}\right)^4=\frac{a^8}{b^8}\).

в) \(\frac{8^{16}\cdot8^{10}}{8^{24}}=8^{16+10-24}=8^2\).

г) \(\frac{(-5)^3\cdot(-5)^{10}}{(5^3)^3}=\frac{(-5)^{13}}{5^9}=-5^4\).