2 |
10) |
x2 |
9 |
y2 |
16 |
3 |
x2 |
a2 |
y2 |
b2 |
2 |
10) |
|
x2 |
6 |
y2 |
6 |
x2 |
9 |
y2 |
16 |
3 |
9 |
9 |
12 |
16 |
1 |
4 |
x2 |
9 |
y2 |
16 |
1 |
4 |
x2 | ||
|
y2 |
4 |
A.
| B.
| ||||||||
C.
| D.
|
x2 |
a2 |
y2 |
b2 |
|PF1|2 |
|PF2| |
A.(0,+∞) | B.(1,2] | C.(1,
| D.(1,3] |
x2 |
4 |
y2 |
9 |
x2 |
36 |
y2 |
m |
A.x±2y=0 | B.2x±y=0 | C.x±4y=0 | D.4x±y=0 |
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