I've got a product of sums expression: F=(A'+B+C')&(A+D')(C+D')
I need to show it as a sum of products and then simplify it.
Right now I got: F=(A'&D')+(A&B&C)+(B&D')+(C&D')
But the problem is that the values in the truth table are not the same. I believe that I've made some mistakes when trying to show it as a sum of products and simplyfing.
Could you please help me out?
Thanks!
Best Answer
Your original expression is a product of sums:
If you apply the
and
for the first two sums, you get:A'A
cancels out to false. In conjunction with the third sum, we get:Applying
D'D' = D'
gives us:A'CD'
is covered byA'D'
and can thus be omitted.The minimized sum of products (the original six terms are covered by just four terms):
The terms of the expression shown in a Karnaugh-Veitch map:
The diagram helps to visually grasp which term is covered by which larger term.