For a binary half-subtractor having two inputs A and B, the correct set of logical expressions for the outputs D (= A minus B) and X (= borrow) are ?

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Pooja

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📊 Digital Electronics and Logic Design

Q. For a binary half-subtractor having two inputs A and B, the correct set of logical expressions for the outputs D (= A minus B) and X (= borrow) are ?

(A) D=AB+ A’B, X = A’B
(B) D=A’B+ AB’ + AB, X= AB’
(C) D=A’B + AB’, X = A’B
(D) D=AB+ A’B’, X= AB’

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✅ Correct Answer: (C) D=A’B + AB’, X = A’B

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