Question

Testul 1 va rogg urgent !!

Answer 1

1.  A = a, d, e, i, l, p, r

2. a) X = 1, 2, 3, 4, 5, 6; b) B = 1, 3, 5, 7, 9

3. A∩B = c, d; A∪B = a, b, c, d, e, f; A-B = a, b; B-A = e, f

4. a) A∩B = 2 elemente; A∪B = 5 elemente; A-B = 2 elemente