4
| ||
3 |
3 |
2
| ||
3 |
4
| ||
3 |
(x+
|
4
| ||
3 |
2
| ||
3 |
(x+
|
x2 |
4 |
x2 |
4 |
8k2 |
1+4k2 |
4k2-4 |
1+4k2 |
2k |
1+4k2 |
4k2 |
1+4k2 |
k |
1+4k2 |
k |
1+4k2 |
1 |
k |
4k2 |
1+4k2 |
3k |
1+4k2 |
3k |
1+4k2 |
3 | ||
|
1 |
k |
1 |
k |
3 |
4 |
3k |
1+4k2 |
3 |
4 |
3k |
1+4k2 |
3 |
4 |
3 |
4 |
x2 |
a2 |
y2 |
b2 |
A.x2+y2=a2 | B.x2+y2=b2 | C.x2+y2=c2 | D.x2+y2=e2 |
NP |
NQ |
GQ |
NP |
m |
n |
A.
| B.
| C.
| D.
|
OP |
1 |
3 |
OA |
OB |
OC |
A.内心 | B.垂心 | C.重心 | D.AB边的中点 |
x2 |
a2 |
y2 |
b2 |
3 |
2 |
6 |
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