a |
π |
6 |
π |
6 |
b |
π |
6 |
π |
6 |
b |
a |
b |
a |
b |
m |
t |
a |
a |
b |
a |
b |
π |
6 |
π |
6 |
1 |
3 |
b |
a |
b |
a |
b |
b |
a |
b |
a |
b |
a |
1 |
2 |
b |
a |
a |
b |
a |
b |
a |
|
| ||
2 |
1 |
2 |
| ||
2 |
t |
m |
t |
a |
b |
a |
b |
m2 |
t2 |
a |
m2 |
t2 |
m2 |
t2 |
m2 |
t2 |
| ||
2 |
| ||
2 |
| ||
2 |
b |
m |
t |
a |
3m |
| ||
2 |
m2 |
t2 |
b |
m |
t |
a |
m2+4m+16 |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
OA |
OB |
OC |
OP |
A.内心 | B.垂心 | C.外心 | D.重心 |
AB |
AC |
BD |
DC |
AI |
BC |
AC |
m |
n |
| ||
2 |
| ||
2 |
m |
n |
m |
n |
m |
n |
3 |
5 |
3π |
4 |
AB |
AP |
A.(3,1) | B.(1,-1) | C.(3,1)或(1,-1) | D.(3,1)或(1,1) |
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