Physics · Digital Electronics
For a binary half subtractor having two inputs A and B, the correct set of logical expressions for the outputs D (difference) and X (borrow out from A) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1D = AB + A'B, X = AB'
- 2D = A'B + AB', X = A'B✓
- 3D = AB' + A'B + AB', X = AB'
- 4D = AB + AB', X = AB'
Correct answer
D = A'B + AB', X = A'B
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