Am nevoie de ajutor repede!!!
dau coroana!
la d)1
![Am Nevoie De Ajutor Repede Dau Coroana La D1 class=](https://ro-static.z-dn.net/files/dd3/e1ad7c43fe3d837135ed47b3f5873075.png)
Răspuns:
a=2/3+15/10= 20/30+45/30=65/30=13/6
b=13/26-1/26=12/26=6/13
rad din 13/6×6/13=rad din 1=1.