AD |
AB |
BE |
BC |
DM |
DE |
AD |
AB |
BE |
BC |
|
|
yE-yD |
xE-xD |
2t-1-(-2t+1) |
-2t-(-2t+2) |
DM |
DE |
|
x2 |
4 |
OD |
OA |
AD |
OA |
AB |
OA |
OB |
OA |
OA |
OB |
OE |
OB |
BE |
OB |
BC |
OB |
OC |
OB |
OB |
OC |
OM |
OD |
DM |
OD |
DE |
OD |
OE |
OD |
OD |
OE |
OA |
OB |
OC |
OA |
OB |
OC |
|
BD |
1 |
2 |
DC |
AD |
BC |
DB |
DC |
DA |
A.x=
| B.x=1+
| C.x=2,y=
| D.x=
|
x2 |
a2 |
OP |
FP |
u |
v |
v |
u |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
c |
c |
a |
3 |
b |
c |
3 |
a |
c |
a |
b |
c |
m |
3 |
b |
m |
c |
m |
c |
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