Question

пжжж помогите решить ​

Answer 1

$(\frac{0,1^{\frac{2}{3}}*0,1^{\frac{1}{9}}}{a^{-\frac{2}{9}}})^{-3}=(\frac{0,1^{\frac{2}{3}+\frac{1}{9} }}{a^{-\frac{2}{9}}})^{-3}=(\frac{0,1^{\frac{7}{9} }}{a^{-\frac{2}{9}}})^{-3}=\frac{(0,1^{\frac{7}{9}})^{-3}}{(a^{-\frac{2}{9}})^{-3}}=\frac{0,1^{-\frac{7}{3}}}{a^{\frac{2}{3}}}=\frac{10^{\frac{7}{3}}}{a^{\frac{2}{3}}}$