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Implement ABC'D' using only one 2-input nand gate and one 3-input nor gate

 
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Feb24-12, 04:00 AM   #1
 

Implement ABC'D' using only one 2-input nand gate and one 3-input nor gate


1. The problem statement, all variables and given/known data

How do I implement ABC'D' using only one 2-input nand gate and one 3-input nor gate?


2. Relevant equations



3. The attempt at a solution
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Feb24-12, 03:02 PM   #2
 
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Quote by nicnick77 View Post
1. The problem statement, all variables and given/known data

How do I implement ABC'D' using only one 2-input nand gate and one 3-input nor gate?


2. Relevant equations



3. The attempt at a solution
I assume you have A,B,C,D as inputs. My hint would be to start by writing it as$$
\overline{(\bar A+\bar B)}(\bar C)(\bar D)$$
Feb26-12, 08:05 AM   #3
 
Thks for your help LCKurtz,

I am able to solve the problem after your advice...
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