24 votes 24 votes Which of the following functions implements the Karnaugh map shown below? $\bar{A}B + CD$ $D(C+A)$ $AD+\bar{A}B$ $(C+D) (\bar{C}+D) + (A+B)$ Digital Logic gate1999 digital-logic k-map easy + – Kathleen asked Sep 23, 2014 • edited Apr 26, 2019 by Sukanya Das Kathleen 5.8k views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply pritishc commented Dec 24, 2019 reply Follow Share We aren't considering the X's here because it goes against the goal of simplification - which is to reduce to as few terms as possible. By adding the quad with X's (by considering them as 1s), we will be increasing terms unnecessarily. 0 votes 0 votes palashbehra5 commented Nov 22, 2021 reply Follow Share pritishc yeah, like we “don't care” about them… 2 votes 2 votes Please log in or register to add a comment.
Best answer 14 votes 14 votes $CD+AD$ $=D(C+A)$ Correct Answer: $B$ Rameez Raza answered Jul 29, 2018 • edited May 21, 2019 by Naveen Kumar 3 Rameez Raza comment Share Follow See all 0 reply Please log in or register to add a comment.
14 votes 14 votes Answer - B. $CD+AD$ ankitrokdeonsns answered Oct 19, 2014 • edited Jun 26, 2018 by Milicevic3306 ankitrokdeonsns comment Share Follow See all 3 Comments See all 3 3 Comments reply air1ankit commented Dec 30, 2017 reply Follow Share how the answer is B, after solving the given k map we get =A' B +DA +DC =A'B + D(A+C) Can you please explain sir 0 votes 0 votes Sahil1994 commented Jan 23, 2018 reply Follow Share @ air1ankit There is only 2 Subcubes of Size 4 ...check it out in K-Map 0 votes 0 votes meghna commented Jul 27, 2018 reply Follow Share AB\CD 00 01 11 10 00 0 0 1 0 01 0 0 1 0 11 0 1 1 0 10 0 1 1 0 No need to consider don't cares, as they will only increase the terms, so make them 0. 0 votes 0 votes Please log in or register to add a comment.