حاصل عبارت‌های زیر را به دست آورید: ۱) $\frac{1}{\sqrt{5}} = \frac{1}{\sqrt{5}} \times \frac{\sqrt{5}}{\sqrt{5}} = \frac{\sqrt{5}}{5}$ ۲) $\frac{1}{\sqrt[3]{2}} = \frac{1}{\sqrt[3]{2}} \times \frac{\sqrt[3]{4}}{\sqrt[3]{4}} = \frac{\sqrt[3]{4}}{\sqrt[3]{8}} = \frac{\sqrt[3]{4}}{2}$ ۳) $\frac{1}{1+\sqrt{3}} = \frac{1}{1+\sqrt{3}} \times \frac{1-\sqrt{3}}{1-\sqrt{3}} = \frac{1-\sqrt{3}}{1-3} = \frac{1-\sqrt{3}}{-2}$ ۴) $\frac{x}{\sqrt{x}-\sqrt{y}} = \frac{x}{\sqrt{x}-\sqrt{y}} \times \frac{\sqrt{x}+\sqrt{y}}{\sqrt{x}+\sqrt{y}} = \frac{x(\sqrt{x}+\sqrt{y})}{x-y}$ ۵) $\frac{1}{\frac{\sqrt[3]{5}-1}{\sqrt[3]{25}+\sqrt[3]{5}+1}} = \frac{\sqrt[3]{25}+\sqrt[3]{5}+1}{\sqrt[3]{5}-1} = \dots$ ۶) $\frac{1}{\sqrt[3]{2}-\sqrt[3]{3}} = \dots$