x2 |
a2 |
y2 |
b2 |
| ||
2 |
3 |
1 |
2 |
3 |
c |
a |
3 |
3 |
π |
4 |
x2 |
sin2θ |
y2 |
cos2θ |
y2 |
cos2θ |
x2 |
sin2θ |
A.实轴长相等 | B.虚轴长相等 | C.离心率相等 | D.焦距相等 |
x2 |
16 |
y2 |
m |
5 |
4 |
π |
4 |
x2 |
cos2θ |
y2 |
sin2θ |
y2 |
sin2θ |
x2 |
sin2θtan2θ |
A.实轴长相等 | B.虚轴长相等 | C.焦距相等 | D.离心率相等 |
x2 |
3 |
y2 |
3 |
A.(
| B.[
| C.(
| D.[
|
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