Discussion
The dual ofthe switching function x + yz is:
Answer: C
Correct answer: x(y+z)
The dual of an expression is formed by exchanging AND with OR and 0 with 1, leaving the variables uncomplemented. Applying that to \( x + yz \) turns the outer OR into AND and the inner AND into OR, giving \( x(y+z) \). Complementing the variables would give the complement, not the dual.
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