Let A = {a, b}, B = {a, b, c}. Is A ⊂ B? What is A ∪ B?
It is given that
A = {a, b} and B = {a, b, c}
Yes, A ⊂ B
So the union of the pairs of set can be written as
A∪ B = {a, b, c} = B
If A = {x : x ϵ R, x < 5} and B = {x : x ϵ R, x > 4}, find A ∩ B.
Prove that A – B = A ∩ B.’
Find the symmetric difference A Δ B, when A = {1, 2, 3} and B = {3, 4, 5}.
Prove that A ∩ (A ⋃ B)’ = ϕ
If A = {3, {2}}, find P(A).