Question

Решить найдите a ∪ b, b ∩ c, a\ b, b\ c, ( a ∪ b) ∩ c, если: a= n, b= {-1, 0, 1, 2, 3 }, c= n.

Answer 1

A ∪ B = A = {-1;0;1;2;3;4...}
B ∩ C = {1,2,3}
A\ B = {4,5,6,7,8}
B\ C = {-1;0}
( A ∪ B) ∩ C = A ∩ C = N