3.
A={0,1,2,3,4,5,6,7}
B={0,1,2,3,4,5}
C={0,1,2,3,4,5,6}
D={0,1,2,3,4,5,6,7,8}
E={4,5,6,7,8,9}
F={0,1,2,3,4,5,6}
4.
a) A={4,5,6,7} submultimi {4,5,} ;{5,6} ; {6,7}
b) A={m,n,p,q} submultimi{m,n} ;{n,p} ;{p,q}
5.
a) A={0,1,2} submultimi {0,1} ;{0,2} ; {1,2}; {2,0}
b) A={a,b,c} submultimi{a,b} ;{b,c} ;{a,c}; {c,a}
6.
a) A={l,m,n} submultimi {l,m,} ;{l,n} ; {m,n} ; {m} ; {n}
b) A={1,2,5} submultimi{1,2} ;{1,5} ;{2,5} ;{2) ;{5}
13.a) x=3 y=4
13. b) x=0 y=5
