a |
b |
a |
b |
a-2b |
a+2b |
A.
| B.2 | C.
| D.1 |
a |
b |
a |
a |
b |
b |
a |
b |
a |
b |
a |
a |
b |
b |
a |
b |
a |
b |
a |
a |
b |
b |
a |
b |
a |
b |
a |
a |
b |
b |
a |
b |
a-2b |
a+2b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
x2 |
a2 |
y2 |
b2 |
AF1 |
F1F2 |
3 |
5 |
F1F2 |
QP |
MP |
PQ |
MQ |
2 |
2 |
CE |
CF |
OA |
AB |
A.
| B.-
| C.-
| D.-
|
AB |
BC |
CA |
AB |
BC |
A.2 | B.-2 | C.2
| D.-2
|
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