x2 |
a2 |
y2 |
b2 |
2 |
2 |
| ||
2 |
2 |
8
| ||
7 |
2 |
| ||
2 |
x2 |
2 |
|
|
x2 |
2 |
y2 |
2 |
2 |
8
| ||
7 |
|
1 |
2 |
4k2±
| ||
2(2k2+1) |
4k2 |
1+2k2 |
2k2-2 |
1+2k2 |
1+k2 |
(x1+x2)2-4x1x2 |
8
| ||
7 |
1+k2 |
|
8
| ||
7 |
3 |
3 |
3 |
x2 |
a2 |
y2 |
b2 |
2
| ||
3 |
6 |
2 |
OA |
OB |
x2 |
a2 |
y2 |
b2 |
5 |
3 |
OP |
OQ |
1 |
|OP|2 |
1 |
|OQ|2 |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
x2 |
a2 |
y2 |
b2 |
3 |
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