Question

Va rog ajutati-ma la exercitiul 1 si 2 .

Answer 1

15*11=165m²
165*42=6930m²
6930m²=0.6930ha

A={c,a,m,e,r,d,o,n,i,t,l}
B={s,a,,l,c,v,e,r,i,o}
C={s,a,l,d,i,e,t,}
A∩B={a,e,c,r,o,i,l}
B∩C={a,s,l,e,i}
B-C={c,v,r,o}