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+9 votes
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Choose the correct alternatives (more than one may be correct) and write the corresponding letters only:

The operation which is commutative but not associative is:

  1. AND
  2. OR
  3. EX-OR
  4. NAND

 

asked in Digital Logic by Veteran (69k points)
edited by | 357 views
'communicative' should be 'commutative'

2 Answers

+13 votes
Best answer
answer - D

$Remark:$
1)Every logic gate follows Commutative law.
2)AND,OR,Ex-OR,EX-NOR follows Associative law also. NAND,NOR doesn`t follow Associative law.
answered by Boss (9.3k points)
edited by
Its good to remember-
1)Every logic gate follows Commutative law.
2)AND,OR,Ex-OR,EX-NOR follows Associative law also. NAND,NOR doesn`t follow Associative law.

commutative law: A operator B = B operator

associative law: A operator (B operator C) = (A operator B) operator C

EX-NOR is associative...
+1 vote
Ans is D you can varify it like  ((AB)'C)' = (A(BC)')' are not equivalent for input 011.
answered by Loyal (4.6k points)

yes option D

 



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