Răspuns:
a) {1,2,3,4}
b) {1,2,3,4,5}
c) {-3,-2,-1,1,2}
d) {-2,-1,1,2,3,4}
e) mulțimea vidă
f) {-2,-1,0,1,2}
g) {-1,1,2,3}
h) {-2,-1}
i) {-1}
