x2 |
a2 |
y2 |
b2 |
7 |
QM |
MP |
2 |
x2 |
a2 |
y2 |
4-a2 |
7 |
9 |
a2 |
7 |
4-a2 |
x2 |
2 |
y2 |
2 |
QM |
MP |
x2 |
2 |
y2 |
2 |
|
3 |
3 |
4k |
1-k2 |
6 |
1-k2 |
(x1-x2)2+(y1-y2)2 |
(1+k2)(x1-x2)2 |
1+k2 |
(x1+x2)2-4x1x2 |
1+k2 |
2
| ||||
|1-k2| |
2 | ||
|
1 |
2 |
1 |
2 |
2 | ||
|
1+k2 |
2
| ||||
|1-k2| |
2
| ||||
|1-k2| |
2 |
2
| ||||
|1-k2| |
2 |
2 |
2 |
2 |
x2 |
16 |
y2 |
9 |
. |
| . |
. |
| . |
2 |
CP |
2 |
PD |
OM |
OA |
OB |
OA |
OB |
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