Question

For a binary half subtractor having two inputs A and B the correct sets of logical expressions for the outputs D (A - B) and X = Borrow are

a.

D = AB + A̅B, X = A̅B

b.

D = A̅B AB̅, X = AB̅

c.

D = A̅B + AB̅, X = A̅B

d.

D = AB + A̅ B̅, X = AB̅

Posted under Electronics and Communication Engineering

Answer: (c).D = A̅B + AB̅, X = A̅B

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Q. For a binary half subtractor having two inputs A and B the correct sets of logical expressions for the outputs D (A - B) and X = Borrow are
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