x2 |
a2 |
y2 |
b2 |
x2 |
a2 |
y2 |
b2 |
b |
a |
|kc| | ||
|
a2 |
b2 |
a |
b |
b |
a |
a |
b |
b |
a |
|
|
(1+k2)[(x1+x2)2-4x1x2] |
2ab2(1+k2) |
|b2-a2k2| |
2ab2 |
b2-a2 |
1 |
2 |
1 |
2 |
1 |
2 |
c2-a2 |
2ab2 |
b2-a2 |
b2 |
b2-a2 |
(a+1)2 |
2a+1 |
a2 |
2a+1 |
t-1 |
2 |
1 |
4 |
1 |
t |
1 |
t |
4 |
3 |
9 |
5 |
x2 |
a2 |
y2 |
b2 |
2 |
F2B |
F2A |
2 |
| ||
2 |
18 |
7 |
2 |
x2 |
a2 |
y2 |
b2 |
5 |
3 |
x2 |
m |
y2 |
n |
x2 |
p |
y2 |
q |
2 |
2 |
PE |
PF |
PQ |
2 |
MQ |
| ||
2 |
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