For any two sets A and B, A ∩ (A ∪ B) is equal to:
Answer: A
This is an absorption law in set theory.
The set A ∪ B contains all elements of A plus all elements of B.
When we take the intersection of this larger set with A, we are left with only the elements that are in A.
Therefore, A ∩ (A ∪ B) = A.