π |
4 |
5 |
13 |
3π |
4 |
cos(
| ||
cos2x |
A.±
| B.
| C.±
| D.
|
3π |
4 |
π |
4 |
π |
4 |
π |
2 |
π |
4 |
π |
4 |
1-sin2(
|
1-(
|
12 |
13 |
π |
4 |
π |
4 |
π |
2 |
π |
4 |
π |
4 |
π |
2 |
π |
4 |
π |
4 |
π |
4 |
cos(
| ||
cos2x |
1 | ||
2cos(
|
1 | ||
2×
|
13 |
24 |
3 |
5 |
π |
4 |
π |
4 |
1 |
2 |
π |
2 |
sin2α-2cos2α | ||
sin(α-
|
12 |
5 |
A.
| B.
| C.-
| D.-
|
5 |
13 |
3 |
5 |
1-sin2160° |
A.cos160° | B.-cos160° | C.±cos160° | D.±|cos160°| |
© 2017-2019 超级试练试题库,All Rights Reserved.