π |
4 |
sin2α-cos2α |
1+cos2α |
π |
4 |
tan
| ||
1-tan
|
1+tanα |
1-tanα |
1 |
3 |
sin2α-cos2α |
1+cos2α |
2sinαcosα-cos2α |
1+2cos2α-1 |
2sinα-cosα |
2cosα |
1 |
2 |
1 |
3 |
1 |
2 |
1 |
6 |
cos(C-B) |
sinA+sin(C-B) |
3 |
| ||
2 |
q |
p |
p |
q |
-2cos2C |
1+tanC |
3 |
π |
6 |
π |
3 |
3 |
2 |
π |
12 |
1 |
2 |
π |
2 |
© 2017-2019 超级试练试题库,All Rights Reserved.