x2 |
5 |
1 |
|F2A| |
1 |
|F2B| |
|
20k2 |
5k2+1 |
5(4k2-1) |
5k2+1 |
5 |
2 | ||
|
5 |
2 | ||
|
1 |
|F2A| |
1 |
|F2B| |
2
| ||||||
5-2(x1+x2)+
|
5 |
1 |
|F2A| |
1 |
|F2B| |
5 |
1 |
|F2A| |
1 |
|F2B| |
5 |
2 | ||
|
2
| ||
5k2+1 |
2
| ||
cos2θ+5sin2θ |
4
| ||
cos2θ+5sin2θ |
4
| ||
1+4sin2θ |
4
| ||
|
5 |
1 |
2 |
5 |
x2 |
3 |
x2 |
25 |
y2 |
9 |
4 |
3 |
A.2 | B.3 | C.4 | D.2
|
x2 |
4 |
y2 |
3 |
PF |
QF |
x2 |
4 |
y2 |
3 |
A.8 | B.9 | C.11 | D.12 |
x2 |
9 |
y2 |
25 |
A.5 | B.6 | C.10 | D.50 |
© 2017-2019 超级试练试题库,All Rights Reserved.