9) (1/3)⁹ : ((1/3)² · (1/3)³)

\(\left(\dfrac13\right)^9:\left(\left(\dfrac13\right)^2\cdot\left(\dfrac13\right)^3\right)=\left(\dfrac13\right)^{9-2-3}=\left(\dfrac13\right)^4=\dfrac1{81}\).

Ответ: \(\dfrac1{81}\)