2 |
2 |
CE |
CF |
y | ||
x+
|
y | ||
x-
|
2 |
2 |
2 |
y | ||
x+
|
y | ||
x-
|
2 |
|
CE |
CF |
4k2+2 |
k2-1 |
4k2 |
k2-1 |
|
2 |
2 |
CE |
CF |
2 |
2 |
CE |
CF |
CE |
CF |
OA |
AB |
A.
| B.-
| C.-
| D.-
|
AB |
BC |
CA |
AB |
BC |
A.2 | B.-2 | C.2
| D.-2
|
a |
b |
c |
a |
b |
c |
OA |
OB |
OA |
OB |
OC |
OA |
OB |
OC |
3 |
AB |
PA |
PB |
A.-5 | B.-4 | C.4 | D.5 |
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