Question

calcule o valor aproximado de $\sqrt[3]{128}$ e de $\sqrt[3]{432}$

Answer 1

Oi :)

$\sqrt[3]{128} = \sqrt[3]{2^{7}}=\sqrt[3]{2^{3}.2^3.2}=2.2 \sqrt[3]{2}=4 \sqrt[3]{2} = 4*1,259= 5,036 ( aproxi)$

$\sqrt[3]{432}= \sqrt[3]{2.2^3.3^3}= 2.3 \sqrt[3]{2}=6\sqrt[3]{2}= 6*1,259= 7,554 (aproxi)$