cos190°•(-sin210°) |
cos350°•(-tan585°) |
cos190°•(-sin210°) |
cos350°•(-tan585°) |
cos(180°+10°)•sin(180°+30°) |
cos(360°-10°)•tan(360°+225°) |
(-cos10°)•(-sin30°) |
cos10°•tan225° |
sin30° |
tan(180°+45°) |
sin30° |
tan45° |
1 |
2 |
A.
| B.-
| C.
| D.±
|
1 |
2 |
2 |
3 |
C-A |
2 |
C+A |
2 |
A.1 | B.
| C.
| D.-1 |
A.-
| B.
| C.-
| D.
|
© 2017-2019 超级试练试题库,All Rights Reserved.