问题

Questions in category: 不定积分 (Indefinite Integral).

常用不定积分

Posted by haifeng on 2014-12-23 20:25:34 last update 2022-04-26 08:56:59 | Answers (0) | 收藏

这里 $a > 0$ .

$\int \frac{1}{t^{2} - a^{2}} d t = \frac{1}{2 a} \ln | \frac{t - a}{t + a} | + C,$

$\int \frac{1}{t^{2} + a^{2}} d t = \frac{1}{a} \arctan \frac{t}{a} + C,$