Question

Toate ex de la testul 1 va rog !

Answer 1

1.$M$₃={xI 17<x>27}
⇒x∈{18,24}
2.  a) {c},{d}.{c,d} si Ф( multimea vida)
b) {e} {f} si {e,f}
3.
{2,0,1,3,}n {2,1,0,5}={1,2,0}
{3,1,2}n{2,0,3}={2,3}
{3,0,1,2} n N*={0}
{2,0,1,3}- N*={2,1,3}