Zadanie 21 Oblicz \sqrt[3]{\frac{1}{512}}*\sqrt[3]{125}-\frac{\sqrt{441}}{\sqrt{400}}
\sqrt[3]{\frac{1}{512}}\cdot \sqrt[3]{125}-\frac{\sqrt{441}}{\sqrt{400}}=\\=\frac{1}{8}\cdot 5-\frac{21}{20}=\\=\frac{5}{8}-\frac{21}{20}=\frac{25-42}{40}=-\frac{17}{40}