π |
6 |
π |
3 |
1 |
2 |
BC |
AB |
π |
6 |
π |
3 |
π |
6 |
π |
3 |
π |
2 |
π |
6 |
π |
6 |
π |
3 |
2π |
2ω |
π |
3 |
π |
3 |
π |
3 |
5π |
3 |
1 |
2 |
π |
3 |
1 |
2 |
π |
3 |
π |
6 |
π |
3 |
5π |
6 |
π |
4 |
7π |
12 |
1 |
2 |
π |
4 |
7π |
12 |
π |
6 |
BC |
AB |
sinA |
sinC |
sin
| ||
sin
|
| ||||
|
2 |
3 |
A.-
| B.-
| C.
| D.
|
A.4
| B.-4
| C.±4
| D.
|
π |
6 |
A.(
| ||||||||
B.[-
| ||||||||
C.x=-
| ||||||||
D.最小正周期是
|
3 |
π |
2 |
π |
2 |
3 |
π |
3 |
4π |
3 |
b-2c |
acos(600+C) |
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