Question

Помогите пожалуйста решить примеры.

Answer 1

$diaplaystyle 1) (A & B & overline B)lor(B&overline C)=A(Boverline B)+Boverline C=Acdot0+Boverline C=B&overline C \ 2) (xlor y)(overline xlor y)(overline xcdotoverline y)=(x+y)(overline x+y)(overline xcdotoverline y)= \ (xoverline x+xy+overline xy+yy)overline xcdotoverline y=(xy+overline xy+y)overline xcdotoverline y= \yoverline y(x+overline x+1)overline x=0cdot1cdotoverline x=0$
$displaystyle 3) (B&A&overline C)lor(B&overline A)=ABoverline C+overline AB=B(Aoverline C+overline A)=overline ABoverline C= \ overline A&B&overline C$