Răspuns :
Folosim relatia:[tex] \sqrt[n]{x^m} =x^{ \frac{m}{n}}\\
\sqrt[3]{27} =\sqrt[3]{3^3}=3^{ \frac{3}{3}} =3^1=3\\
\sqrt[4]{16} =\sqrt[4]{2^4}=2^{ \frac{4}{4}} =2^1=2[/tex]
Folosim relatia:[tex] \sqrt[n]{x^m} =x^{ \frac{m}{n}}\\
\sqrt[3]{27} =\sqrt[3]{3^3}=3^{ \frac{3}{3}} =3^1=3\\
\sqrt[4]{16} =\sqrt[4]{2^4}=2^{ \frac{4}{4}} =2^1=2[/tex]