x2 |
λ+1 |
PF1 |
PF2 |
AQ |
QB |
NQ |
AB |
λ+1 |
PF |
PF2 |
(|PF1|+|PF2|)2 |
2 |
x2 |
λ+1 |
λ+1 |
3 |
3 |
x2 |
3 |
AQ |
QB |
x12 |
3 |
x22 |
3 |
(x 1+x2)(x1-x2) |
3 |
y2-y1 |
x2-x1 |
x2+x1 |
3(y2+y1) |
1 |
3k |
NQ |
AB |
1 |
k |
1 |
k |
3k |
2 |
1 |
2 |
(-
| ||
3 |
1 |
2 |
BA |
AC |
A.-
| B.-
| C.
| D.
|
a |
b |
a |
b |
a |
b |
π |
3 |
a |
a |
b |
A.4 | B.6 | C.2+
| D.4+2
|
1 |
x |
OP |
OQ |
a |
3 |
b |
a |
b |
a |
b |
c |
a |
b |
c |
a |
b |
c |
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