2 |
OP |
OA |
OB |
|x-4| | ||
|
2 |
x2 |
8 |
y2 |
4 |
4m |
m2+2 |
4 |
m2+2 |
OP |
OA |
OB |
(x1+x2)2 |
8 |
(y1+y2)2 |
4 |
x | 21 |
y | 21 |
x | 22 |
y | 22 |
x | 21 |
y | 21 |
x | 22 |
y | 22 |
2 |
2 |
4m2 |
m2+2 |
2 |
OP |
OA |
OB |
2 |
2 |
x2 |
6 |
y2 |
2 |
x2 |
3 |
| ||||
|
题型:
|
A.
| B.
| C.
| D.-
|
A. | B. | C. | D. |
x2 |
a2 |
y2 |
b2 |
3 |
3 |
1 |
2 |
3 |
3 |
OC |
OD |
A.
| B.
| ||||||||
C.
| D.
|
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