Question

Stiind ca A={a,b,c] si B {a,c,b} aflati A U B

Answer 1

AUB={a,b,c}U{a,c,b}={a,b,c}
Sau daca "a" diferit de "a","b" diferit de "b" si "c" diferit de "c" vom avea

AUB={a,b,c}U{a,c,b}={a;b;c;a;c;b}