Exercitiul 8
a) [tex]\displaystyle{ \frac{35}{5\sqrt{3}} = \frac{7}{\sqrt{3}} = \frac{7\sqrt{3}}{3} }[/tex]
b) [tex]\displaystyle{ - \frac{36}{4\sqrt{5}} = -\frac{9}{\sqrt{5}} = -\frac{9\sqrt{5}}{5} }[/tex]
c) [tex]\displaystyle{ \frac{-33}{-3\sqrt{11}} = \frac{11}{\sqrt{11}} = \frac{11\sqrt{11}}{11} = \sqrt{11} }[/tex]
d) [tex]\displaystyle{ \frac{10}{15\sqrt{3}}^{(5} = \frac{2}{3\sqrt{3}} = \frac{2\sqrt{3}}{3\cdot 3} = \frac{2\sqrt{3}}{9} }[/tex]
Exercitiul 11 se rezolva la fel. A rationaliza numitorul inseamna a amplifica fractia cu radicalul de la numitor.
