The dual form of (A + B) is:

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KVS TGT WET (Work Experience Teacher) 23 Dec 2018 Official Paper
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  1. A̅ • B̅ 
  2.  B
  3. A̅ + B̅ 
  4. A̅ + B

Answer (Detailed Solution Below)

Option 2 :  B
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Detailed Solution

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Concept:

To get dual form of a given expression we have to perform the following steps.

1. Interchange OR and AND operators.

2. Replace all 0's by 1's and all 1's by 0's.

Analysis:

The dual form of (A + B) =  B

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