Question

Calcular 1/3 raiz 7 elevado 2/3

Answer 1

Se eu entendi, temos:

$\frac{1}{ \sqrt[3]{ {7}^{ \frac{2}{3} } } } \\ \\ = \frac{1}{ \sqrt[3]{ \sqrt[3]{ {7}^{2} } } } \\ \\ = \frac{1}{ \sqrt[9]{ {7}^{2} } } \times \frac{ \sqrt[9]{ {7}^{7} } }{ \sqrt[9]{ {7}^{7} } } \\ \\ = \frac{ \sqrt[9]{ {7}^{7} } }{7}$