Respuesta :
[tex]\\ \bull\tt\dashrightarrow \left(\dfrac{-1}{9}\right)^3[/tex]
[tex]\\ \bull\tt\dashrightarrow \dfrac{(-1)^3}{9^3}[/tex]
[tex]\\ \bull\tt\dashrightarrow \dfrac{-1}{729}[/tex]
Answer:
[tex]{ \tt{ {( \frac{ - 1}{9}) }^{3} = \frac{ {( - 1)}^{3} }{ {9}^{3} } }} \\ \\ = { \underline{ \tt{ \: \: \frac{ - 1}{729} \: \: }}}[/tex]