Question

Номер 2(аналитически) пожалуйста

Answer 1

$displaystyle P backslash Q = P & overline Q \ \ A backslash(B backslash C)=A & overline{B & overline C}=A& (overline B lor C)=A & overline B lor A land C \ \ (A backslash B) lor A land C=A & overline B lor A land C$