Posted by haifeng on 2017-12-29 11:40:25 last update 2021-11-14 23:06:26 | Answers (3) | 收藏
计算不定积分
\[ \int\frac{1}{1-\sin x}dx \]
\[ \int\frac{1}{1+\sin x}dx \]
关于
\[ \int\frac{1+\sin x}{1-\sin x}dx \]
参见问题 1450