Correct the following boolean statements: 1. X+1 = X 2. (A')'=A'

Question

Correct the following boolean statements:

1. X+1 = X

2. (A')'=A'

3. A+A'=0

4. (A+B)' = A.B

Answer 1

1. X+1 =1 or X+0=X

2. ((A’)’) = A

3. A + A’= 1 or A . A’=0

4. (A+B)’ = A’ . B’