Zadanie
\sqrt{5^2}+\sqrt{3^2}+\sqrt{2\frac{7}{9}}=5+3+\sqrt{\frac{25}{9}}=8+\frac{5}{3}=8+1\frac{2}{3}=9\frac{2}{3}
Zadanie 2
Usuń niewymierność:
a)
\frac{6\sqrt3}{\sqrt2}=\frac{6\sqrt3*\sqrt2}{\sqrt2*\sqrt2}=\frac{6\sqrt6}{2}=3\sqrt6
b)
\frac{9}{2\sqrt3}=\frac{9*\sqrt3}{2\sqrt3*\sqrt3}=\frac{\not9^3\sqrt3}{2*\not3^1}=\frac{3\sqrt3}{2}