AP |
BP |
PC |
AP |
BP |
AP |
BP |
PC |
AP |
BP |
PC |
k |
1-k |
1 |
1-k |
k |
1-k |
1 |
|1-k| |
AP |
BP |
x2+y2 |
AP |
BP |
5+4cosθ |
AP |
BP |
AP |
BP |
OA |
OB |
OA |
OB |
OC |
OA |
OB |
A.等腰三角形 | B.等边三角形 |
C.直角三角形 | D.等腰直角三角形 |
a |
a |
b |
a |
b |
5 |
b |
A.
| B.2
| C.5 | D.25 |
a |
b |
a |
b |
A.
| B.
| C.
| D.
|
a |
b |
a |
b |
a |
a |
b |
a |
b |
a |
a |
b |
a |
b |
2 |
b |
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