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//chapter28
//example28.5
//page598
disp(" A B A` Y_dash = A`. B B` Y = Y_dash + B` ")
disp(" 0 0 1 0 1 1 ")
disp(" 1 0 0 0 1 1 ")
disp(" 0 1 1 1 0 1 ")
disp(" 1 1 0 0 0 0 ")
printf("\nexplanation: \n")
printf("A=0 and B=0 give A`=1 and B`=1 so Y_dash = A`.B is 0 and Y = Y_dash + B` is 1 \n")
printf("A=1 and B=0 give A`=0 and B`=1 so Y_dash = A`.B is 0 and Y = Y_dash + B` is 1 \n")
printf("A=0 and B=1 give A`=1 and B`=0 so Y_dash = A`.B is 1 and Y = Y_dash + B` is 1 \n")
printf("A=1 and B=1 give A`=0 and B`=0 so Y_dash = A`.B is 0 and Y = Y_dash + B` is 0 \n")
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