10 |
x2 |
a2 |
y2 |
b2 |
10 |
a2-c2 |
10-4 |
6 |
x2 |
10 |
y2 |
6 |
|
20k2 |
3+5k2 |
12k |
3+5k2 |
OA |
OB |
OC |
20k2 |
3+5k2 |
12k |
3+5k2 |
(
| ||
10 |
(-
| ||
6 |
x2 |
a2 |
y2 |
b2 |
5 |
9x2 |
a2 |
y2 |
b2 |
9x2 |
2a2 |
4y2 |
b2 |
x2 |
a2 |
y2 |
b2 |
| ||
3 |
4
| ||
5 |
| ||
2 |
x2 |
a2 |
y2 |
b2 |
PF1 |
PF2 |
4 |
3 |
4 |
3 |
| ||
|
|
| ||
|
|
F1F2 |
PQ |
AB |
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