11. Which of the following relationships represents the dual of the Boolean property x + x'y = x + y Choose the best answer.

- x'(x + y') = x'y'
- x(x'y) = xy
- x*x' + y = xy
- x'(xy') = x'y'
- x(x' + y) = xy

1 is WRONG. Almost correct, but do not interchange complements.

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