Question

1.Determinati multimea X stiind ca sunt indeplinite,simultan,conditiile: (1)x ⊂ {0,1,2,3,4} (2) x ∩ {1,2,3}={1,3} (3) X \ N* ≠ Ø

Answer 1

X = {0,1,3,4} sau X = {0,1,3}