Question

Which of the following set laws holds?

1) A U ∅ = A
2) A n A = ∅
3) A U B = B n A
4) A U (B n C) = (A n B) U (B n A)​

Answer 1

Answer:

Option 1 is correct answer.

Step-by-step explanation:

Because a random set combined with an empty set is always the set itself.