A | B | Y |
0 | 0 | 1 |
0 | 1 | 0 |
1 | 0 | 1 |
1 | 1 | 0 |
From the truth table:
- When A = 0, B = 0, Y = 1.
- When A = 1, B = 0, Y = 1.
- When A = 1, B = 1, Y = 0.
From the table, Y is 1 when B = 0, irrespective of A. This indicates Y = $\overline{B}$. Thus, the Boolean expression for Y is $\overline{B}$.
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |