1.
a). multimea vida, {1},{2},{1,2};
b).multimea vida, {2}, {3}, {5}, {2,3}, {2,5}, {3,5}, {2,3,5};
c).multimea vida, {a}, {b}, {c}, {d}, {a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}, {a,b,c}, {a,b,d},{a,c,d},{b,c,d},{a,b,c,d};
2.
a).M={1,2}
b).M={1,2}
M={1,2,3}
M={1,2,3,4}
M={1,2,3,4,5}
3.
a).primul simbol
b).al treilea simbol
c).al doilea simbol
