5. Вычислите: \( \frac{6^4 ⋅ 2^4}{16^6} \), \( \left( \frac{9}{10} \right)^6 \left( \frac{1}{9} \right)^8 \).

\( \frac{6^4 ⋅ 2^4}{16^6} = \frac{(6 ⋅ 2)^4}{16^6} = \frac{12^4}{16^6} \). \( \left( \frac{9}{10} \right)^6 \left( \frac{1}{9} \right)^8 = \frac{9^6}{10^6} ⋅ \frac{1}{9^8} = \frac{1}{9^2 ⋅ 10^6} \).