#### BlueCerealBox

- Sep 30, 2014

- 27

- Joined
- Sep 30, 2014

- Messages
- 27

Hi ,

I have a homework question which asks me to find the boolean equation of X.L in the image attached , the solutions are also attached. But I'm rather confused with all the active low and active high signals.

Why does it say that /Z1 = /A/B/C/D ? Shouldn't not /A/B/C/D be Z1 instead ? and /Z1 be /(/A/B/C/D) ?

I am aware that X.L = /X . H

I am seriously confused. Hoping to seek clarification.

Thanks!

I have a homework question which asks me to find the boolean equation of X.L in the image attached , the solutions are also attached. But I'm rather confused with all the active low and active high signals.

Why does it say that /Z1 = /A/B/C/D ? Shouldn't not /A/B/C/D be Z1 instead ? and /Z1 be /(/A/B/C/D) ?

I am aware that X.L = /X . H

I am seriously confused. Hoping to seek clarification.

Thanks!