OP |
1 |
3 |
OA |
OB |
OC |
OD |
OA |
OB |
OP |
1 |
3 |
OA |
OB |
OC |
OP |
1 |
3 |
OD |
OC |
2(1-λ) |
3 |
OD |
1+2λ |
3 |
OC |
2(1-λ) |
3 |
1+2λ |
3 |
AC |
CB |
0 |
OC |
OA |
OB |
x2 |
a2 |
y2 |
b2 |
| ||
3 |
OM |
OA |
OB |
a |
b |
a |
b |
a |
b |
f′(x) |
x2 |
a |
b |
2 |
AB |
BC |
A.4 | B.-4 | C.2 | D.-8 |
OA |
sinA |
sinA+sinB |
OB |
OA |
sinB |
sinB+sinA |
OC |
OA |
0 |
A.AB边上 | B.AC边上 | C.BC边上 | D.△ABC内心 |
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