2 |
3 |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
x2 |
2 |
|
4m |
3 |
2m2-2 |
3 |
2 |
2 |
(x1-x2)2-4x1x2 |
2 |
(-
|
4
| ||
3 |
|m| | ||
|
1 |
2 |
1 |
2 |
|m| | ||
|
4
| ||
3 |
| ||||
3 |
2 |
3 |
2 |
2 |
2 |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
3 |
2 |
4
| ||
3 |
x2-9 |
A1P |
OM |
A2P |
OM |
A1P |
A2P |
x2 |
16 |
y2 |
4 |
A.x+4y-5=0 | B.x-4y-5=0 | C.4x+y-5=0 | D.4x-y-5=0 |
x2 |
a2 |
y2 |
b2 |
5 |
|PQ| |
|PM| |
|PQ| |
|PN| |
x2 |
4 |
y2 |
3 |
π |
3 |
© 2017-2019 超级试练试题库,All Rights Reserved.