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Find the dual of:
Find the dual of: $X.Y + X.Y' = X + 0$
Answer
Answer
AIThe dual of an expression is obtained by interchanging AND (.) with OR (+) and interchanging 0 with 1, keeping the variables unchanged.
$X.Y + X.Y' = X + 0$
Dual: $(X+Y).(X+Y') = X.1$
From ISC 2019 Computer Science Paper 1, question 1(c).