Calculati:
a) {3,4,7,11} U {1,2,3,4,5,6}
b) {7,13,8,5} intersectia a doua multimi {0,2,4,6,78}
c) {8,3,10,5,7} \ { 1,2,3,4,5,6,7}
d) {0,1,2,3} intersectia a doua multimi {1,2,3,4} intersectia a doua multimi{2,3,4,5}