x2 |
a2 |
y2 |
b2 |
| ||
2 |
3 |
1 |
2 |
| ||
2 |
| ||
2 |
a2 |
4 |
x2 |
a2 |
4y2 |
a2 |
3 |
1 |
2 |
3 |
a2 |
1 |
a2 |
x2 |
4 |
x2 |
4 |
x1+x2 |
2 |
-4km |
1+4k2 |
y1+y2 |
2 |
m |
1+4k2 |
y0-0 |
x0-(-1) |
1 |
k |
1 |
5 |
| ||
5 |
1 |
2 |
1 |
2 |
m | ||
|
| ||||
1+4k2 |
2
| ||
9k2 |
2
| ||||||
9 |
1 |
k2 |
1 |
2 |
2 |
3
| ||
2 |
2 |
3
| ||
2 |
A.2x2-2y2-2x-1=0 | B.x2+y2=1 |
C.2x2+2y2-y=0 | D.2x2-2y2-2x+2y-1=0 |
2 |
2 |
2 |
OP |
OQ |
MN |
x2 |
4 |
3
| ||
2 |
1 |
2 |
2 |
2 |
| ||
3 |
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