Question

1)fie multimile a={a,b,c,d} si b ={c,d,ef}
a)scrieti submultimile lui A care sunt submultimi ale lui B
b)scrieti submultimile nevide ale multimii B-A
2)calculati:
a) {2,0,1,3} intersectat {2,1,0,5}
b){3,1,2} reunit {2,0,3}
c){3,0,1,2} reunit cu N
d){2,,0,1,3}-N

Answer 1

1.a)A={d,c}   A={d}    A={c}

 b)B-A={e,f} B-A={e}   B-A={f}

2.a) {2,0,1}

b) {3,1,2,0}

c) {3,0,1,2,4,5.......}  

d)  {2,0,1,3}-N={Ф(multimea vida)}