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Digital Electronics - Engineering

Q1:

The dual of A + [B + (AC)] + D is

A A + [(B (A + C))] + D

B A [B + AC] D

C A + [B (A + C)] D

D A [B (A + C)] D

ANS:D - A [B (A + C)] D

In taking dual OR is replaced by AND and vice versa.