2 |
x2 |
a2 |
y2 |
b2 |
x2 |
a2 |
y2 |
b2 |
x2 |
b2+4 |
y2 |
b2 |
2 |
4 |
b2+4 |
2 |
b2 |
x2 |
8 |
y2 |
4 |
x2 |
a2 |
y2 |
b2 |
b2+a2k2 |
b2+a2k2 |
2a2km |
b2+a2k2 |
2b2m |
b2+a2k2 |
a2km |
b2+a2k2 |
b2m |
b2+a2k2 |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
F1A |
F2A |
π |
3 |
2π |
3 |
4
| ||
3 |
5 |
5 |
AF |
FB |
k1x1x2 |
x1+x2 |
k1x3x4 |
x3+x4 |
x2 |
a2 |
y2 |
b2 |
. |
AF1 |
F1F2 |
. |
AF2 |
. |
AF2 |
F1A |
. |
F1F2 |
. |
OP |
. |
MP |
. |
PQ |
MQ |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
2 |
OM |
ON |
OP |
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