Question

用逻辑代数的定理 证明下列表达式

（AB+A非C）非=AB非+A非C非，题目对吗？

Answer 1

左 = (AB+A'C)'= (AB)'(A'C)' = (A'+B')(A+C')= AB'+A'C'+B'C'
=(AB'+A'C'+B'C')=AB'+AB'C'+A'C'+A'B'C'
= AB'(1+C') + A'C'(1+B') = AB' + A'C' = 右
即： 左表达式与右表达式相等!命题得证。
结论：题目正确无误!

Answer 2

水电费水电费水电费水电费水电费水电费水电费水电费水电费水电费水电费水电费水电费水电费

Answer 3

这个问题我很难回答。给点赞一下呗，谢谢啊！

Answer 4

左 = (AB+A'C)'= (AB)'(A'C)' = (A'+B')(A+C')= AB'+A'C'+B'C'
=(AB'+A'C'+B'C')=AB'+AB'C'+A'C'+A'B'C'
= AB'(1+C') + A'C'(1+B') = AB' + A'C' = 右

Answer 5

...gregregre