Question

0,001 elevado a -2/3.1000 elevado a 5/6

Answer 1

$0,001$ é igual a $10^{-3}$ E 1000 é $10^{3}$ 
Portanto fica assim $(10^{-3})^- \frac{2}{3} . (10^3) \frac{5}{6} \\ 10^ \frac{6}{3} . 10 \frac{15}{6} \\ 10 \frac{6}{3}+ \frac{15}{6} = 10 \frac{27}{6} \\ = 10 \frac{9}{2}$