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+11 votes

In the Karnaugh map shown below, X denotes a don’t care term. What is the minimal form of the function represented by the Karnaugh map?


  1. $\bar{b}.\bar{d} + \bar{a}.\bar{d}$

  2. $\bar{a}.\bar{b} + \bar{b}.\bar{d} + \bar{a}.b.\bar{d}$

  3. $\bar{b}.\bar{d} + \bar{a}.b.\bar{d}$

  4. $\bar{a}.\bar{b} + \bar{b}.\bar{d} + \bar{a}.\bar{d}$

asked in Digital Logic by Veteran (68.8k points) | 801 views

3 Answers

+16 votes
Best answer

2 Quads are getting formed


Value for First one is a'd' and value for 2nd one is b'd'.

Ans is Option A

answered by Junior (527 points)
selected by
+3 votes
m0 ,m1,m8 ,m9 form one quad a'd'

m0,m2,m8,m10 form one quad b'd'

So f=a'd'+b'd'

Ans is a
answered by Veteran (33.9k points)
hi, why we are not taking m0,m4,m12,m8 means with dont care
+2 votes
answer - A
answered by Boss (9.3k points)

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