1.

Which of the following Boolean expressions are correct? Write the correct forms of the incorrect ones. 1. A + A1 = 1 2. A + 0 = A 3. A . 1 = A 4. A . A1 = 1 5. A + A . B = A 6. A . (A + B) = A 7. A + 1=1 8. \((\overline{A.B})\) = \(\bar A . \bar B\)9. A + A1 B = A + B 10. A + A = A 11. A + B . C = (A+B) . (B+C)

Answer»

1. Correct 

2. Correct 

3. Correct

4. Wrong, A . A1 = 0

5. Correct 

6. Correct 

7. Correct 

8. Wrong   \((\overline{A.B})\) = \(\bar A + \bar B\)

9. Correct 

10. Correct 

11. Wrong, A + B . C = (A + B) . (A + C)



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