Question

Qual é o valor de
$\sqrt[3]{7} \sqrt{7}$
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Answer 1

$\sqrt[3]{7\sqrt{7} } =\sqrt[3]{\sqrt{7^2.7} } =\sqrt[3.2]{7^{2+1}} =\sqrt[6]{7^3} \\ \\ simplificando\\ \\ \sqrt[6:3]{7^{3:3}} =\sqrt{7}$