ex 8,9 rapid va rog dau coroana
![Ex 89 Rapid Va Rog Dau Coroana class=](https://ro-static.z-dn.net/files/dd9/982d8f8af9e219ad34c037ce9e073f2d.jpg)
8) A={1,2,3,4,5}
B={1,2,3}
Calculează:
AUB={1,2,3,4,5}
AnB={1,2,3}
A/B={4,5}
B/A={Mulțimea vidă}