x2 |
m |
y2 |
n |
5 |
3 |
PA |
PB |
A.4 | B.3 | C.2 | D.
|
PA |
PB |
PA |
PB |
| ||
2 |
| ||
2 |
2 |
m |
x2 |
m |
y2 |
n |
5 |
3 |
5 |
m |
3 |
n |
c |
a |
| ||
2 |
| ||
2 |
x2 |
4 |
5 |
5 |
x2 |
a2-k2 |
y2 |
b2+k2 |
x2 |
a2 |
y2 |
b2 |
A.相同的实轴 | B.相同的虚轴 |
C.相同的焦点 | D.相同的渐近线 |
A.0条 | B.1条 | C.2条 | D.3条 |
x2 |
a2 |
y2 |
b2 |
A.相交 | B.内切 | C.外切 | D.相离 |
x2 |
m |
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