Boolean Algebra Properties

Question

Answer 1

1. A.A=A :- true ,idempotent property

2.Second option is also true as 1+X=x,so both lhs and rhs are 1.

3.A+BC=(A+B)(A+C)// true distributive property

4.4th is false. A'+AC=A'+C ,but this is not same as given in question.You can verify with truth table.

So 4th is false. D is correct answer