numarul rad 0,(4) apartine multimii
![Numarul Rad 04 Apartine Multimii class=](https://ro-static.z-dn.net/files/dba/525b90de97864afec7eaac7d5698e38d.jpg)
[tex]\sqrt{0,(4)}[/tex] = [tex]\sqrt{\frac{4}{9} }[/tex] = [tex]\frac{2}{3}[/tex]