Which of the following Boolean algebra rules is correct?

Home » Digital Electronics » Digital electronics miscellaneous » Question

Which of the following Boolean algebra rules is correct? (A) (B) (C) (D)

1. A. A = 1
2. A + AB = A + B
3. A + AB = A + B
4. A (A + B) = B

Correct Option: C

● A·A = 1 → Incorrect
● A + AB = A + B → Incorrect
● A + AB = A + B →→ Correct
● A (A + B) = B → Incorrect