Question

Racionalize a fração com demonstração

$\frac{2}{\sqrt[7]{4^{3} } }$

Answer 1

2/4^(3/7)

= 2/2^(6/7)

= 2*2^(1/7) / 2^(8/7)*2^(1/7)

= 2*2^(1/7)/2  

= 2^(1/7)

= ⁷√2