OA |
OB |
OC |
OD |
OA |
OB |
BC |
BD |
OB |
OC |
OB |
OD |
OB |
OB |
OC |
OD |
OA |
OB |
OC |
OD |
OA |
OB |
OC |
OD |
OA |
OB |
OC |
OD |
OA |
OB |
BC |
BD |
BA |
BC |
BD |
OA |
OB |
OC |
OD |
OP |
1 |
5 |
OA |
2 |
3 |
OB |
OC |
a |
b |
c |
a |
b |
c |
A.(
| B.(2,3,1) | C.(-3,1,5) | D.(5,13,-3) |
A.
| B.1,8 | C.-
| D.-1,-8 |
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