x2 |
4 |
y2 |
3 |
A.
| B.
| C.
| D.
|
6m |
3m2+4 |
9 |
3m2+4 |
1 |
2 |
(y1+y2)2-4y1y2 |
|
m2+1 |
(3m2+4)2 |
1 | ||
9m2+15+
|
1 | ||
9m2+9+
|
1 |
16 |
2S△F1PQ |
8 |
3 |
4 |
9 |
16 |
x2 |
a2 |
y2 |
b2 |
2 |
3 |
x2 |
8 |
y2 |
4 |
| |PF1|-|PF2| | |
|PF1| |
x2 |
a2 |
y2 |
b2 |
OA |
OB |
0 |
AF2 |
F1F2 |
| ||
2 |
A.y=
| B.y=-
| C.y=-
| D.y=
|
x2 |
a2 |
y2 |
b2 |
3 |
1 |
2 |
OM |
3 |
5 |
OA |
4 |
5 |
OB |
| ||
2 |
| ||
2 |
2 |
x2 |
a2 |
y2 |
b2 |
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