x2 |
a2 |
y2 |
b2 |
| ||
3 |
x2 |
a2 |
y2 |
b2 |
c |
a |
| ||
3 |
3 |
x2 |
12 |
y2 |
4 |
x12 |
12 |
y12 |
4 |
x22 |
12 |
y22 |
4 |
4(x1-x2) |
12 |
2(y1-y2) |
4 |
y1-y2 |
x1-x2 |
2 |
3 |
2 |
3 |
x2 |
a2 |
y2 |
b2 |
S1 |
S2 |
y2 |
a2 |
x2 |
b2 |
1 |
2 |
3 |
3 |
x2 |
a2 |
y2 |
5 |
AF2 |
F1F2 |
1 |
3 |
MQ |
QF |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
3 |
2 |
1 |
2 |
| ||
2 |
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