π |
6 |
π |
2 |
3 |
CA |
CB |
CM |
A.1 | B.-1 | C.
| D.-
|
π |
6 |
π |
2 |
3 |
3 |
| ||
3 |
CM |
1 |
2 |
CA |
CB |
CA |
CB |
CM |
CA |
CB |
1 |
2 |
CA |
CB |
1 |
2 |
CA |
CB |
1 |
2 |
a |
b |
a |
b |
A.(1,1,1) | B.0 | C.-2 | D.(0,0,-2) |
x2 |
2 |
y2 |
b2 |
3 |
PF1 |
PF2 |
A.-12 | B.-2 | C.0 | D.4 |
a |
i |
i |
k |
b |
i |
j |
k |
a |
b |
A.-1 | B.-3 | C.-5 | D.-15 |
PA |
PB |
PB |
PC |
PC |
PA |
A.-
| B.-
| C.-
| D.-
|
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