a |
b |
b |
a |
a |
b |
b |
a |
b |
a |
b |
a |
(1+t)2+ (2t-1)2+02 |
5t2-2t+2 |
1 |
5 |
9 |
5 |
1 |
5 |
9 |
5 |
1 |
5 |
b |
a |
|
3
| ||
5 |
3
| ||
5 |
AC1 |
AB |
BC |
CC1 |
AE |
AA1 |
AB |
AD |
AF |
AD |
AB |
AA1 |
OP |
OA |
| ||
|
|
| ||
|
|
A.外心 | B.内心 | C.重心 | D.垂心 |
A1B1 |
a |
A1D1 |
b |
AA1 |
c |
B1O |
A.
| B.
| C.-
| D.-
|
AB |
a |
AD |
b |
AA1 |
c |
B1M |
A.-
| B.
| C.-
| D.-
|
AB |
a |
AD |
b |
AA1 |
c |
EF |
a |
b |
c |
A.
| B.
| C.-
| D.
|
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