问题

求定积分 ${\int }_0^{\frac{\pi }{2}}{\sin }^5\theta \cdot {\cos }^4\theta \mathrm{d}\theta$.

Posted by haifeng on 2025-04-19 10:14:14 last update 2025-04-19 10:14:14 | Answers (2) | 收藏