Question

用卡诺图法化简下列逻辑函数为最简"与—或"表达式

Answer 1

(1)F(A,B,C,D)=ABD+A'C'D+CD+B'D

F=D

(2)F(A,B,C,D)=(AD+B)(B'+C')D+BC+D

=(AD+BD)(B'+C')+BC+D

=AB'D+0+AC'D+BC'D+BC+D

F=D+BC

(3)F(A,B,C,D)=ABD+A'BD'+AC'D'+BC'

F= ABD+A'BD'+AC'D'+BC' 已最简