| 2 |
| 2 |
| 1 |
| 4 |
| OA |
| OB |
| y | ||
x+2
|
| y | ||
x-2
|
| y | ||
x+2
|
| y | ||
x-2
|
| 1 |
| 4 |
| y | ||
x+2
|
| y | ||
x-2
|
| 1 |
| 4 |
| 2 |
| y | ||
x+2
|
| y | ||
x-2
|
| 1 |
| 4 |
| x2 |
| 8 |
| y2 |
| 2 |
| y | ||
x+2
|
| y | ||
x-2
|
| 1 |
| 4 |
| 6 |
| 5 |
| 2 |
| x2 |
| 8 |
| y2 |
| 2 |
| 1 |
| 2 |
| m |
|
| OA |
| OB |
| 5 |
| 4 |
| 1 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2|m| | ||
|
| ||
| 2 |
| (x1+x2)2-4x1x2 |
| 5 |
| 4-m2 |
| 1 |
| 2 |
| 2|m| | ||
|
| 5(4-m2) |
| 4m2-m4 |
| 2 |
| 1 |
| 2 |
| 2 |
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