retagged by
1,865 views

6 Answers

0 votes
0 votes
Let f=AB+AB’+A’C+AC

       =A(B+B’)+C(A+A’)

       =A(1)+C(1)

       =A+C

So,it is unaffected by the value of B

option(2)
0 votes
0 votes

Here f(A,B,C)=AB+AB'+AC+A'C

After minimzation we get f= A+C that means f is independent from var. B .

In other word ,here var. B is useless or dummy var(not standard term)

Related questions

1 votes
1 votes
2 answers
1