Originally posted by arvind@Nov 9 2004, 05:29 AM
hi,
as far as part b is concerned here is the proof:
A+ A'B +A'B' = A + A' ( B + B' ) = A + A' = 1
because by demorgan laws, A + A' =1
part a is not clear what is that emoticon doing in between? B)
[post=3479]Quoted post[/post]
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