Simplifying a boolean expression

Question

I'm working on the following problem:

boolean expression

I found the correct answer for part (i): $$ Z = \left(\overline{(\overline{A + B})C}\right) (C\overline{D}) $$ How can I simplify this expression?

De Morgan is helpful. There are also a lot of identity boolean expressions that would help. See here. — sherrellbc, Commented Jul 28, 2014 at 12:20
The question is asking if there is a simpler Boolean expression to give the same outputs. It's asking you to apply DeMorgan's laws to find a simpler solution. What have you tried? — Warren Hill, Commented Jul 28, 2014 at 12:21
This is the same type of question as "simplify the expression 5x + x - 3" except in logic. Apply a few transforms (eg: "not(A and B) -> (not A) or (not B)") and see what can be done. — carveone, Commented Jul 28, 2014 at 12:35

Danny · Accepted Answer · 2014-07-29 09:49:48Z

2

This is the solution:

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For safety use Karnaugh:

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answered Jul 29, 2014 at 9:09

Danny

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