| ||
2 |
AP |
PB |
x2 |
a2 |
y2 |
b2 |
2 |
c |
a |
| ||
2 |
x2 |
4 |
y2 |
2 |
AP |
PB |
|
-2k±
| ||
2k2+1 |
-2k-
| ||
2k2+1 |
-2k+
| ||
2k2+1 |
-2k-
| ||
2k2+1 |
-2k+
| ||
2k2+1 |
1 |
14 |
1 |
2 |
1 |
2 |
1+k2 |
(x1+x2)2-4x1x2 |
1 |
2 |
2
| ||
2k2+1 |
| ||
8 |
| ||
8 |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
2 |
OA |
OB |
8 |
3 |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
PF |
PA |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
16 |
7 |
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