Question

Me ajudem,por favor

1-Resolva as seguintes expressões:


[tex] \sqrt[5]{7} ^{18} 

Answer 1

$\ \ \ \sqrt[5]{7} ^{18} \\=\sqrt[5]{7^{18} } \\=\sqrt[5]{7^{15+3}}\ \\=\sqrt[5]{7^{15}\cdot 7^3 } \\=\sqrt[5]{7^{15}}\cdot \sqrt[5]{7^3 } \\=7^3\cdot \sqrt[5]{7^3} \\=343\sqrt[5]{7^3}$