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GATE CSE 2013 | Question: 21

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7 Answers

3 votes
3 votes
simplest one !

put the value x= 1 y=1 z =1 and put in all the options, you will get d is giving value 0 and our main equation which is mention in the question is giving value 1 so the equation which does not belong to answer is option d >
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1 votes
1 votes

use these two rules and manipulate formulae you will find 

option (D) represents X-OR rest are X-NOR

  • x⊙y = x.y + x'.y' (X-NOR)

 

  • x⊕y = x'.y + x.y' (X-OR)
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