题目内容
| ∫ |
|
| cos2x |
| cosx+sinx |
定积分
dx
=
dx
=
(cosx-sinx)dx
=(sinx+cosx)|0
=1-1=0.
故答案为:0.
| ∫ |
|
| cos2x |
| cosx+sinx |
=
| ∫ |
|
| cos2x-sin2x |
| cosx+sinx |
=
| ∫ |
|
=(sinx+cosx)|0
| π |
| 2 |
故答案为:0.
练习册系列答案
相关题目