Simplifiez $\bigg(\dfrac{5^{-2}}{5^{11}}\bigg)^{-3}\times\dfrac{5^{-3}}{5^{8}}$=

Simplifiez $9^{12}\times\dfrac{\sqrt{9}^{-4}}{9^{-10}}$=

Simplifiez $\dfrac{\dfrac{10^{-11}}{10^{-7}}}{\dfrac{10^{12}}{10^{12}}}$=

Simplifiez $\bigg(\dfrac{6^{-10}\times6^{10}}{6^{8}}\bigg)^{-3}$=

Simplifiez $\dfrac{\dfrac{10^{6}}{10^{-6}}}{\dfrac{10^{2}}{10^{3}}}$=

Simplifiez $\dfrac{\dfrac{8^{12}}{8^{-8}}}{\dfrac{8^{-1}}{8^{-12}}}$=

Simplifiez $\bigg(\dfrac{5^{1}}{5^{5}}\bigg)^{-3}\times\dfrac{5^{-4}}{5^{10}}$=

Simplifiez $4^{8}\times\dfrac{\sqrt{4}^{-8}}{4^{24}}$=

Simplifiez $\bigg(\dfrac{4^{7}\times\sqrt{4}^{24}}{4^{6}}\bigg)^{-4}$=

Simplifiez $\dfrac{\bigg(9^{-8}\bigg)^{-4}\times9^{8}}{9^{11}}$=