Understand Logic Equations for Your Engineering Exam

[xpack]

24. The logic expression A ⋅ (B +C) is equal to
A. A +B +C
B. A +B ⋅C
C. A +B ⋅C
D. (B) and (C)
E. None of the above

25. The expression F = A + AB + ABC is equivalent to
A. F = AB+B+ABC
B. F = A+B+C
C. F = ABC
D. (B) and (C)
E. All the above

32. The logic equation A + A·B + B·C + C is equal to:
A. A·B + B·C
B. A·B + B·C + C
C. A + A·B + B·C
D. A + C
E. None of the above

24. C
25. D
26. D

Can someone explain why?

Have my engineering exam tomorrow and the only thing I seem to be having problems with is logic equations.

Thank you

 

[xpack]

Anyone? Please