| a |
|
|
|
|
| 0 |
|
|
| (4.3) |
| 0 |
|
|
| (4.4) |
| 1 |
|
|
| (4.5) |
| 2 |
|
|
| (4.6) |
| 3 |
|
|
| (4.7) |
| 3 |
|
|
| (4.8) |
| 4 |
|
|
| (4.9 |
| 5 |
|
|
| (4.10) |