[tex]e)\\\\\sqrt[3]{2\frac{2}{3}}*\sqrt[3]{ \frac{1}{9}}=\sqrt[3]{2 \frac{2}{3}*\frac{1}{9}}= \sqrt[3]{\frac{8}{3}*\frac{1}{9}}=\sqrt[3]{\frac{8}{27}}=\frac{2}{3}\\\\f)\\\\\frac{\sqrt[3]{2,7}}{\sqrt[3]{100}}=\sqrt[3]{\frac{2,7}{100}}=\sqrt[3]{0,027}=0,3\\\\g)\\\\\sqrt[3]{-9}*\sqrt[3]{3}=\sqrt[3]{-9*3}=\sqrt[3]{-27} =-3[/tex]
[tex]h)\\\\\frac{\sqrt[3]{128}}{\sqrt[3]{-2}}=\sqrt[3]{-\frac{128}{2}}=\sqrt[3]{-64}=-4\\\\i)\\\\\frac{\sqrt[3]{-0,5}*\sqrt[3]{4}}{\sqrt[3]{16}} =\frac{\sqrt[3]{-0,5*4} }{\sqrt[3]{16}} =\frac{\sqrt[3]{-2} }{\sqrt[3]{16}}=\sqrt[3]{-\frac{2}{16}} =\sqrt[3]{-\frac{1}{8}} =-\frac{1}{2}\\\\\\\\stosujemy\ nastepujace wzory :\\\\\sqrt{a}*\sqrt{b}=\sqrt{ab}\\\\\sqrt[3]{a}*\sqrt[3]{b}=\sqrt[3]{ab}[/tex]
[tex]\frac{\sqrt{a}}{\sqrt{b}} =\sqrt{\frac{a}{b} }\\\\\frac{\sqrt[3]{a}}{\sqrt[3]{b}} =\sqrt[3]{\frac{a}{b} }[/tex]
