Question

Dau coroana!
√0,1 (3)- √0,0 (3)+ √0,2 (9)

Answer 1

$\sqrt{0,1(3)}-\sqrt{0,0(3)}+\sqrt{0,2(9)}= \\ \sqrt{ \frac{2}{15}}- \sqrt{ \frac{1}{30}}+ \sqrt{ \frac{3}{10}}= \\ \\ \frac{\sqrt{2}}{\sqrt{15}}-\frac{{1}}{\sqrt{30}}+\frac{\sqrt{3}}{\sqrt{10}}= \frac{2-1+3}{\sqrt{30}} =\frac{4}{\sqrt{30}}=\frac{2\sqrt{30}}{15}$

/robèrtinni