Question

(i) (A U B)' = A' B'
(ii) (An B)' = A' U B'
(iii) A - B = A B
(iv) B - A = B n A'.​

Answer 1

Answer:

2

Step-by-step explanation:

1. (A U B)'=A' n B'

2. (A n B)'=A' U B'

3. A-B=A-(A n B)

4. B-A=B-(B n A)

So answer 2 is correct.