a |
3 |
2 |
3 |
2 |
b |
x |
2 |
x |
2 |
π |
2 |
a |
b |
a |
b |
a |
b |
a |
b |
3 |
2 |
a |
b |
3 |
2 |
x |
2 |
3 |
2 |
1 |
2 |
a |
b |
a |
a |
b |
b |
π |
2 |
a |
b |
a |
b |
a |
b |
3 |
2 |
1 |
2 |
1 |
2 |
OA |
OB |
OA |
OB |
OC |
OA |
OB |
m |
n |
A.
| B.3 | C.
| D.
|
a |
b |
c |
a |
b |
b |
c |
a |
b |
a |
b |
a |
b |
2 |
3 |
a |
b |
A.2 | B.4 | C.12 | D.2
|
a |
b |
a |
b |
BC |
a |
CA |
b |
AB |
c |
a |
b |
b |
c |
c |
a |
A.3 | B.-3 | C.
| D.-
|
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