x2 |
12 |
y2 |
4 |
(x-2)2 |
12 |
(y-4)2 |
4 |
x2 |
12 |
y2 |
4 |
x12 |
12 |
y12 |
4 |
x22 |
12 |
y22 |
4 |
(x1-x2)(x1+x2) |
12 |
(y1-y2)(y1+y2) |
-4 |
y1-y2 |
x1-x2 |
1 |
3 |
x1+x2 |
y1+y2 |
-1 |
k |
| ||
|
y1+y2-4 |
x1+x2 |
3(y1+y2) |
x1+x2 |
y1+y2-4 |
x1+x2 |
x2 |
12 |
y2 |
4 |
-6km |
1+3k2 |
m-1 |
3 |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
F1M |
F2M |
2 |
3 |
2 |
1 |
2 |
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