a |
b |
c |
a |
c |
5 |
c |
a |
c |
a |
c |
b |
| ||
2 |
a |
b |
a |
b |
a |
b |
c |
a |
a |
c |
a |
c |
5 |
c |
a |
c |
a |
c |
c |
a |
c |
a |
c |
a |
b |
a |
b |
a |
a |
b |
b |
a |
5 |
b |
| ||
2 |
a |
b |
5 |
4 |
a |
b |
5 |
2 |
a |
b |
| ||||
|
|
-
| ||||||
|
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
AB |
AC |
1 |
2 |
| ||
2 |
AB |
AC |
A.(
| B.(
| C.(
| D.(
|
a |
b |
. |
| . |
. |
| . |
. |
| . |
b |
a |
b |
5 |
b |
A.(-3,6) | B.(3,-6) | C.(6,-3) | D.(-6,3) |
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