а) Даны множества:
A = {2, 3, 8},
B = {2, 3, 8, 11},
C = {5, 11}.
Найдите:
1) A∩B; A∩C; B∩C;
2) AUB; AUC; BUC.
б) Даны множества:
K = {a, b, c},
M = {x, y},
P = {b, c, x}.
Найдите:
1) K∩M; M∩P; K∩P;
2) KUM; MUP; KUP.
1)
A∩B = {2, 3, 8};
A∩C = {∅};
B∩C = {11}.
2)
AUB = {2, 3, 8, 11};
AUC = {2, 3, 5, 8, 11};
BUC = {2, 3, 5, 8, 11}.
1)
K∩M = {∅};
M∩P = {x};
K∩P = {b, c}.
2)
KUM = {a, b, c, x, y};
MUP = {b, c, x, y};
KUP = {a, b, c, x}.