Which of the following identifies belongs to DeMorgan's theorems?
A
x+x=1
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B
xy=yx
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C
(xy)′=x′+y′
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D
x.0=0
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Solution
The correct option is C(xy)′=x′+y′ DeMorgan's theorem are two additional simplification techniques that can be used to simply Boolean expressions. DEMorgan's theorem describes the equivalence between gates with inverted inputs and gates with inverted outputs.