y2 |
4 |
OP |
OF2 |
F2P |
A.2 | B.
| C.3 | D.
|
5 |
5 |
5 |
5 |
1+
|
OP |
OF2 |
F2P |
1+
|
5 |
1+
|
5 |
m2 |
4 |
16 |
5 |
4
| ||
5 |
5 |
|PF2| | ||||||||
|
|PF1| |
|PF2| |
4 |
2 |
x2 |
m |
y2 |
3m |
x2 |
a2 |
y2 |
b2 |
A.在x轴上 |
B.在y轴上 |
C.在x轴或y轴上 |
D.无法判断是否在坐标轴上 |
x2 |
a2 |
y2 |
b2 |
x2 |
2-k |
y2 |
k-1 |
A.(1,2) | B.(-∞,1)∪(2,+∞) | C.(-∞,1) | D.(2,+∞) |
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