1 |
3 |
| ||
5 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
1+k2 |
1-k2 |
2 | ||
|
1+k2 |
1-k2 |
λ-1 |
λ+1 |
1 |
9 |
1 |
5 |
4 |
5 |
3 |
2 |
1 |
p |
|OM| |
|MN| |
1 |
|NA| |
3 |
2 |
x2 |
a2 |
y2 |
b2 |
F1M |
F2M |
x2 | ||
sin
|
y2 | ||
cos
|
A.焦点在x轴上的椭圆 | B.焦点在x轴上的双曲线 |
C.焦点在y轴上的椭圆 | D.焦点在y轴上的双曲线 |
x2 |
a2 |
y2 |
b2 |
. |
AC |
. |
F1F2 |
. |
AF1 |
. |
AF2 |
1 |
9 |
. |
AF1 |
AF1 |
F1B |
AF2 |
F2C |
PM |
MA |
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