3 |
2 |
26 |
A.
| B.
| C.
| D.
|
3 |
2 |
26 |
x2 |
4λ |
y2 |
9λ |
26 |
26 |
x2 |
8 |
y2 |
18 |
a2 |
c |
8 | ||
|
4
| ||
13 |
8 |
13 |
26 |
3 |
2 |
A.
| B.
| C.
| D.
|
x2 |
9 |
y2 |
16 |
A.2arctan
| B.π-arctan
| C.arctan(-
| D.π-arctan
|
x2 |
25 |
y2 |
144 |
A.P到左焦点的距离为8 |
B.P到左焦点的距离为15 |
C.P到左焦点的距离不确定 |
D.这样的P点不存在 |
x2 |
m |
y2 |
2 |
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