For the given combination of gates, if the logic states of inputs A, B, C are as follows A=B=C=0 and A=B=1,C=0 then the logic states of output D are
0,0
0,1
1,0
1,1
A
1,1
B
0,1
C
1,0
D
0,0
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Solution
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The output D for the given combination: D=¯(A+B).C=¯(A+B)+C If A=B=C=0 then D=(¯0+0)+¯0=¯0+¯0=1+1=1 if =B=1,C=0 then D=(¯1+1)+¯0=¯1+¯0=0+1=1
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