1)
A = {0, 2, 4, 6, 8} = {x e N | 2 divide x si x ≤ 8}
B = {1, 2, 4, 8, 16, 32} = {x e N | x = [tex]2^{y}[/tex] si x ≤ 32}
C = {0, 3, 6, 9, 12, ...} = {x e N | 3 divide x}
2)
A = {2, 3, ..., 6}
B = {0, 1}
C = {-3, -2, -1, 0, 1}
D = {4, 5, 6, 7}
E = {-6, -5, -4, 4, 5, 6}
F = {-6, -5, -4, -3, 3, 4, 5, 6}
3)
M = {-7, -1/3, -[tex]\sqrt{4}[/tex], 0, -[tex]\sqrt{2}[/tex], [tex]\sqrt{3}[/tex], 0,5, 7}
A = {0, 7}
B = {-7, -[tex]\sqrt{4}[/tex], 0, 7}
C = {-7, -[tex]\sqrt{4}[/tex], -1/3, 0, 0,5, 7}
D = M
4) A = {2, 3, 4}
B = {1, 2, 3, 6}
C = {1/6, 1/2, 2/3, 1, 3/2, 4/3, 2, 3, 4}
Sper ca am inteles ce cereau.
