| ||
2 |
x2 | ||
|
y2 | ||
|
7 |
2 |
c |
a |
| ||
2 |
x2 |
8 |
y2 |
4 |
π |
2 |
1 | ||
|
|
-4k |
1+k2 |
-6 |
1+2k2 |
(1+k2)[(
|
1 |
2 |
1 |
2 |
1 | ||
|
(1+k2)[(
|
1 |
2 |
(
|
|
|
1 |
1+2k2 |
16k2+6 |
(1+2k2)2 |
16k2+8-2 |
(1+2k2)2 |
8 |
1+2k2 |
2 |
(1+2k2)2 |
x2 |
m |
y2 |
4 |
x2 |
4 |
MA |
MB |
3 |
x2 |
a2 |
y2 |
b2 |
π |
3 |
|PF1-PF2| |
|OP| |
x2 |
a2 |
y2 |
b2 |
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