题目
题型:不详难度:来源:
x2 |
16 |
y2 |
64 |
A.50 | B.24 | C.-50 | D.-24 |
答案
x2 |
16 |
y2 |
64 |
3 |
∵双曲线x2-y2=λ与椭圆
x2 |
16 |
y2 |
64 |
∴-2λ=48,
∴λ=-24.
故选D.
核心考点
举一反三
y2 |
12 |
A.6
| B.12 | C.12
| D.24 |
x2 |
16 |
y2 |
9 |
A.y=±
| B.y=±
| C.x=±
| D.y=±
|
y2 |
2 |
A.2 | B.3 | C.4 | D.6 |
y2 |
4 |
x2 |
5 |
x2 |
a2 |
y2 |
b2 |
5 |
A.y=
| B.y=2x | C.y=
| D.y=
|