7 Ordinary differential equations II

Must use Laplace transform in all questions. You wish.

1. New: 3.1.6 Old: 3.1.6

2. New: 3.2.2 Old: 3.2.2

3. New: 3.2.8 Old: 3.2.8

4. New: 3.3.30 Old: 3.3.34

5. New: 3.3.6 Old: 3.3.6