AB |
BC |
OA |
OB |
OC |
OB |
OA |
OC |
OB |
OA |
OB |
OC |
OB |
OA |
OC |
OA |
OB |
OC |
0 |
OA |
OB |
OC |
0 |
AD |
AB |
DF |
DE |
1 |
8 |
AB |
BC |
OA |
OB |
OC |
0 |
AB |
BC |
OA |
OB |
OC |
OB |
OA |
OB |
OC |
OB |
OA |
OC |
OA |
OC |
OB |
OA |
OB |
OC |
OB |
OA |
OC |
OA |
OB |
OC |
0 |
OA |
OB |
OC |
0 |
OD |
OA |
AD |
OA |
OE |
OA |
OB |
OC |
AD |
AB |
DF |
DE |
S△ADE |
S△ABC |
| ||
|
1 |
2 |
1 |
2 |
1 |
2 |
h1 |
h2 |
1-λ |
λ |
S△DBF |
S△ADE |
| ||
|
1-λ |
λ |
1 |
2 |
1 |
2 |
1-λ+λ |
2 |
1 |
8 |
1 |
2 |
1 |
8 |
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A、i≥2014 |
B、i>2014 |
C、i≤2014 |
D、i<2014 |
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OA |
OB |
OC |
0 |
AB |
AC |
A、
| ||||
B、
| ||||
C、
| ||||
D、
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