Răspuns :
[tex]log_{ \sqrt[3]{2} }8= \frac{log_{2 }8}{log_{ 2 }\sqrt[3]{2}} =\frac{log_{2 }2^3}{log_{ 2 }2^{ \frac{1}{3} }} =\\
= \frac{3}{ \frac{1}{3} } =3: \frac{1}{3}=9[/tex]
[tex]\displaystyle log_{ \sqrt[3]{2} }8= \frac{1}{ \frac{1}{3} }log_28=3log_28=3log_22^3=3 \cdot 3log_22=3 \cdot 3=9 [/tex]