Question

Fie multimea
A={11, 12, 13, 14, 15}
a) Scrieti 3 multimi avand reuniunea A
b) Scrieti 4 multimi avand reuniunea A
c) Scrieti 5 multimi avand reuniunea A
d) Scrieti 6 multimi avand reuniunea A
In fiecare caz, gasiti trei solutii

Answer 1

a)B={12 11 13 16 18}  C={13 14 18 17}   D={11 12 16 14 19}
b)  B={11 15 17 19}    C={11 12 18}    D={11 13 18 12}  E={12 11 13  15 19}
c)B={15 14 16 17 18 20} C=}12 16 19}  C={13 16 18 10}  D={10 11 14 17}  
E={12 14 16 19}  F={11 13 15 }
D) B={12 14  16 18}  C=12 15 19} D={11 14 13 17} E={11 13 15 17 }  F={12 16 19}   G={20 12 11 13}