Решение:
а) $$B \land (A \lor B)$$
| A |
B |
$$A \lor B$$ |
$$B \land (A \lor B)$$ |
| И |
И |
И |
И |
| И |
Л |
И |
Л |
| Л |
И |
И |
И |
| Л |
Л |
Л |
Л |
б) $$A \land (B \lor \overline{B})$$
| A |
B |
$$\overline{B}$$ |
$$B \lor \overline{B}$$ |
$$A \land (B \lor \overline{B})$$ |
| И |
И |
Л |
И |
И |
| И |
Л |
И |
И |
И |
| Л |
И |
Л |
И |
Л |
| Л |
Л |
И |
И |
Л |
в) $$B \land (A \lor B \lor C)$$
| A |
B |
C |
$$A \lor B \lor C$$ |
$$B \land (A \lor B \lor C)$$ |
| И |
И |
И |
И |
И |
| И |
И |
Л |
И |
И |
| И |
Л |
И |
И |
Л |
| И |
Л |
Л |
И |
Л |
| Л |
И |
И |
И |
И |
| Л |
И |
Л |
И |
И |
| Л |
Л |
И |
И |
Л |
| Л |
Л |
Л |
Л |
Л |
г) $$A \land B \lor \overline{C}$$
| A |
B |
C |
$$A \land B$$ |
$$\overline{C}$$ |
$$A \land B \lor \overline{C}$$ |
| И |
И |
И |
И |
Л |
И |
| И |
И |
Л |
И |
И |
И |
| И |
Л |
И |
Л |
Л |
Л |
| И |
Л |
Л |
Л |
И |
И |
| Л |
И |
И |
Л |
Л |
Л |
| Л |
И |
Л |
Л |
И |
И |
| Л |
Л |
И |
Л |
Л |
Л |
| Л |
Л |
Л |
Л |
И |
И |