不定积分公式

1.幂函数

$\int x^a , dx = \frac{1}{a+1} \cdot x^{a+1} + C$

$1. \int \frac{1}{\sqrt{x}}dx = 2\sqrt{x} + C$
$2. \int \frac{1}{x^2}dx = -\frac{1}{x} + C$
$3. \int \frac{1}{x}dx = \ln |x| + C$

2.指数函数

$\int a^x , dx = \frac{a^x}{\ln a} + C$