Question

Sa se determine multimile A si B stiind ca aunt indeplinite simultan conditiile. a)AUB={0,1,2,3,4,5,6,7} b)Ase gaseste in B ={2} c){0,5,7} inclus B

Answer 1

Text corectat;
b) A∩B= {2}

Rezolvare
2∈B
si{0,5,7} ⊂B
deci B={0;2;5;7}
 atunci din a) si b) avem A= {1;2;3;4;6}