bae

 Profile Answers by bae 

• Apr 21st, 2006

 

Can u explain how come the answer (A')(B')(AB)..............Here also C is present, but it is nowhere in answer..........for input ABC=000 output Y=1.........(A')(B')(AB)=110.......but Y=1........then how come the answer Y=(A')(B')(AB).........pls explain.

srinivas.b

 Profile Answers by srinivas.b 

• Jul 28th, 2007

 

the answer is ~(A|B)|C
~ = compliment
| = OR

Explanation:-

The i/p at C does not have any effect on the o/p. So we can safely use an OR gate to connect the A,B combination to C.

Now, consider the i/p's at A and B, we can notice that ;

A B C  Y      
0 0 0  1           even though the i/p at A and B is 0, the o/p is 1, so we can say that
0 0 1  1           the A, B combination is the compliment of the OR of the i/p's.
0 1 0  0
0 1 1  0
1 0 0  0
1 0 1  0
1 1 0  1
1 1 1  1

dhanasweet

 Profile Answers by dhanasweet Questions by dhanasweet

• Jun 4th, 2008

 

The following truth table is given. What is Y equal to??A B C Y=A'B'+AB 0 0 0 1 0 0 1 1 0 1 0 00 1 1 01 0 0 01 0 1 01 1 0 11 1 1 1