x2 |
a2 |
y2 |
b2 |
PF2 |
F1F2 |
OH |
PF1 |
OH |
OF1 |
1 |
3 |
1 |
2 |
|OH| |
|OF1| |
|PF2| |
|F1P| |
c2 |
a2 |
y12 |
b2 |
b2 |
a |
b2 |
a |
b2 |
a |
b2 |
2a2-b2 |
b2 |
a2 |
2λ |
1+λ |
c2 |
a2 |
b2 |
a2 |
2 |
1+λ |
2 |
1+λ |
1 |
3 |
1 |
2 |
1 |
3 |
1 |
2 |
| ||
2 |
x2 |
a2 |
y2 |
b2 |
x2 |
a2 |
y2 |
b2 |
OA |
OB |
2 |
3 |
3 |
4 |
x2 |
a2 |
y2 |
b2 |
2
| ||
3 |
2 |
x2 |
a2 |
y2 |
b2 |
2 |
S2(x) |
x+3 |
x2 |
a2 |
y2 |
b2 |
A.
| B.
| C.
| D.
|
x2 |
a2 |
y2 |
b2 |
2π |
3 |
A.
| B.
| C.
| D.
|
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