OA |
OB |
OC |
OA |
OB |
A.λ2+μ2=1 | B.
| C.λ•μ=1 | D.λ+μ=1 |
OC |
OA |
OB |
OC |
OA |
OB |
OA |
OB |
OA |
OB |
OC |
OA |
a |
OB |
b |
AD |
AB |
A.
| B.
| C.
| D.
|
e1 |
0 |
. |
a |
. |
e1 |
. |
e2 |
. |
b |
. |
e1 |
. |
a |
. |
b |
A.λ=0 | B.
| ||||||||
C.
| D.λ=0或
|
A.0 | B.1 | C.2 | D.3 |
b |
a |
a |
b |
a |
b |
b |
a |
b |
a |
b |
a |
b |
A.6和10 | B.-6和10 | C.-6和-10 | D.6和-10 |
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