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Question -

Correct the following boolean statements :
1. X+1 = X
2. (A’)’ = A’
3.  A+A’ = 0
4.  (A+B)’ = A.B



Answer -

1. X+l=l or X+0=X
2. ((A’)’) = A
3. A + A’ = 1 or A. A’ = 0
4. (A 4- B)’ = A’.B1

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