Biomedical Engineering > GATE 2026 > Karnaugh Maps
The figure below shows the Karnaugh map (K-map) for a truth table with 4 variables A, B, C and D. Which one of the following expressions represents the minimum sum of products? Note: The empty cells in the K-map are 0's.
A
BC + A̅BD + ACD̅ + ABD̅
B
ABC̅D̅ + A̅BC̅D + AB̅CD̅ + BC
C
BC + ACD̅ + A̅BD + ABC̅D̅
D
ABD̅ + A̅BD + ACD̅ + BCD + BCD̅

Correct : c

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