| ||
| 2 |
| PF |
| PB |
| x2 |
| a2 |
| y2 |
| b2 |
| PF1 |
| PB |
| PF |
| PB |
| x2 |
| a2 |
| y2 |
| b2 |
(1+1)2+(
|
(1-1)2+(
|
| 2 |
| 2 |
| x2 |
| 2 |
| PF1 |
| PB |
| PF1 |
| PB |
| x2 |
| 2 |
| PF1 |
| PB |
| 1 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
| 2 |
| 2 |
| PF1 |
| PB |
| 3 |
| 2 |
| 2 |
| PF1 |
| PB |
| 1 |
| 2 |
| 2 |
| 2 |
| 2 |
| 3 |
| 2 |
| PF1 |
| PB |
| 2 |
| PF1 |
| PB |
| 3 |
| 2 |
| 2 |
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