Integral de $$$\frac{3}{2 u}$$$

Encontre $$$\int \frac{3}{2 u}\, du$$$.

Aplique a regra do múltiplo constante $$$\int c f{\left(u \right)}\, du = c \int f{\left(u \right)}\, du$$$ usando $$$c=\frac{3}{2}$$$ e $$$f{\left(u \right)} = \frac{1}{u}$$$:

$${\color{red}{\int{\frac{3}{2 u} d u}}} = {\color{red}{\left(\frac{3 \int{\frac{1}{u} d u}}{2}\right)}}$$

A integral de $$$\frac{1}{u}$$$ é $$$\int{\frac{1}{u} d u} = \ln{\left(\left|{u}\right| \right)}$$$:

$$\frac{3 {\color{red}{\int{\frac{1}{u} d u}}}}{2} = \frac{3 {\color{red}{\ln{\left(\left|{u}\right| \right)}}}}{2}$$

Portanto,

$$\int{\frac{3}{2 u} d u} = \frac{3 \ln{\left(\left|{u}\right| \right)}}{2}$$

Adicione a constante de integração:

$$\int{\frac{3}{2 u} d u} = \frac{3 \ln{\left(\left|{u}\right| \right)}}{2}+C$$

$$$\int \frac{3}{2 u}\, du = \frac{3 \ln\left(\left|{u}\right|\right)}{2} + C$$$A