this is the final exam in year 1 electrical and electronic engineering degree i am doing. need these...

Question

this is the final exam in year 1 electrical and electronic engineering degree i am doing. need these 6 questions answered correctly, please help!!!

David · Accepted Answer

Solution: 
Truth Table : 
D3 D2 D1 D0 Out(d) 
0 0 0 0 1 
0 0 0 1 0 
0 0 1 0 1 
0 0 1 1 1 
0 1 0 0 0 
0 1 0 1 1 
0 1 1 0 1 
0 1 1 1 0 
1 0 0 0 1 
1 0 0 1 1 
1 0 1 0 X 
1 0 1 1 X 
1 1 0 0 X 
1 1 0 1 X 
1 1 1 0 X 
1 1 1 1 X
Karnaugh Map : 
D3D2\D1D0 00 01 11 10 
00 1 0 1 1 
01 0 1 0 1 
11 d d d d 
10 1 1 d d
On solving The karnaugh Map we get: 
          ̅̅ ̅̅    ̅̅ ̅̅      ̅̅ ̅̅       ̅̅ ̅̅      ̅̅ ̅̅     
NOR Form: 
  (           ̅̅ ̅̅ )(  ̅̅ ̅̅       )(  ̅̅ ̅̅     ̅̅ ̅̅    ̅̅ ̅̅ )
Solution: 
Truth Table:

this is the final exam in year 1 electrical and electronic engineering degree i am doing. need these 6 questions answered correctly, please help!!!

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