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GATE ECE 2007 | Question-41

The Boolean expression $Y=\bar{A} \bar{B} \bar{C} D+\bar{A} B C \bar{D}+A \bar{B} \bar{C} D+A B \bar{C} \bar{D}$ can be minimized to

  1. $Y=\bar{A} \bar{B} \bar{C} D+\bar{A} B \bar{C}+A \bar{C} D$
  2. $Y=\bar{A} \bar{B} \bar{C} D+B C \bar{D}+A \bar{B} \bar{C} D$
  3. $Y=\bar{A} B C \bar{D}+\bar{B} \bar{C} D+A \bar{B} \bar{C} D$
  4. $Y=\bar{A} B C \bar{D}+\bar{B} \bar{C} D+A B \bar{C} \bar{D}$
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