π |
2 |
π |
2 |
π |
4 |
1 |
3 |
π |
4 |
β |
2 |
| ||
3 |
β |
2 |
OA |
OB |
OA |
OB |
OA |
OB |
OA |
OB |
OA |
OB |
π |
2 |
π |
4 |
1 |
3 |
π |
4 |
π |
4 |
π |
2 |
π |
4 |
1-cos2(α+
|
2
| ||
3 |
π |
2 |
π |
4 |
π |
4 |
3π |
4 |
π |
4 |
β |
2 |
| ||
3 |
π |
4 |
β |
2 |
1-cos2(
|
| ||
3 |
β |
2 |
π |
4 |
π |
4 |
β |
2 |
π |
4 |
π |
4 |
β |
2 |
π |
4 |
π |
4 |
β |
2 |
1 |
3 |
| ||
3 |
2
| ||
3 |
| ||
3 |
5
| ||
9 |
π |
3 |
π |
3 |
2π |
3 |
sinB+sinC |
sinA |
| ||
cosA |
π |
4 |
A.1或-
| B.1 | C.
| D.-
|
A.-
| B.-
| C.
| D.
|
sinα-cosα |
sinα+cosα |
π |
4 |
A.2 | B.-2 | C.
| D.-
|
θ |
2 |
3 |
| ||
2 |
© 2017-2019 超级试练试题库,All Rights Reserved.