x2 |
a2 |
y2 |
b2 |
| ||
2 |
PF1 |
F1F2 |
2 |
3 |
PF1 |
F1F2 |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
1 |
a2 |
1 |
2b2 |
x2 |
2 |
|m| | ||
|
|
4km |
1+2k2 |
2m2-2 |
1+2k2 |
m2-2k2 |
1+2k2 |
1-k2 |
1+2k2 |
OA |
OB |
1+k2 |
1+2k2 |
2 |
3 |
AB |
3 |
BC |
AC |
BC |
AC |
AB |
OA |
OB |
2 |
2 |
PE |
PF |
PQ |
2 |
MQ |
| ||
2 |
x2 |
a2 |
y2 |
4 |
F1P |
F2P |
A.8-4
| B.4+2
| C.4 | D.8
|
BC |
CA |
A.10 | B.20 | C.-10 | D.-20 |
© 2017-2019 超级试练试题库,All Rights Reserved.