3 |
AB |
BC |
AB |
BC |
AB |
BC |
AB |
BC |
1 |
2 |
AB |
BC |
1 |
2 |
AB |
BC |
s |
6 |
1 |
2 |
3 |
3 |
3 |
AB |
BC |
π |
4 |
π |
3 |
2 |
π |
4 |
π |
4 |
π |
3 |
π |
4 |
3π |
4 |
11π |
12 |
π |
4 |
11π |
12 |
π |
3 |
3+
| ||
2 |
AB |
BC |
A.19 | B.-14 | C.-18 | D.-19 |
AB |
DC |
AB |
AD |
a |
b |
a |
b |
a |
b |
b |
a |
CD |
1 |
2 |
CA |
CB |
x 2 |
4 |
y2 |
3 |
m |
OA |
OB |
m |
OF |
A.2x-y-2=0 | B.2x+y-2=0 | C.2x-y+2=0 | D.2x+y+2=0 |
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