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The output Y of the circuit shown in the figure is

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  4. ABC + D + E

Answer (Detailed Solution Below)

Option 4 : ABC + D + E
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Detailed Solution

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The correct answer is 'option 4'

Solution:

From the figure,

At 1 the combination is AB

At2 the combination is C

At 3 combination is 

At 4 combination is 

Using De Morgan's law,

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