OA |
OC |
7 |
OB |
OC |
OA |
OC |
OA |
OC |
7 |
1 |
2 |
π |
3 |
π |
3 |
π |
2 |
π |
6 |
AC |
BC |
AC |
BC |
1 |
2 |
1 |
4 |
3 |
4 |
π |
2 |
7 |
4 |
| ||
2 |
1-
| ||
4 |
1+
| ||
4 |
4+
| ||
3 |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
2 |
a |
a |
b |
a |
b |
A.30° | B.45° | C.90° | D.135° |
a |
b |
2 |
a |
b |
a |
a |
b |
a |
b |
a |
5 |
b |
a |
b |
b |
a |
a |
b |
m |
n |
π |
6 |
m |
3 |
n |
AB |
m |
n |
AC |
m |
n |
AD |
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