Integral de $$$\frac{a^{2}}{2}$$$

Encontre $$$\int \frac{a^{2}}{2}\, da$$$.

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

$${\color{red}{\int{\frac{a^{2}}{2} d a}}} = {\color{red}{\left(\frac{\int{a^{2} d a}}{2}\right)}}$$

Aplique a regra da potência $$$\int a^{n}\, da = \frac{a^{n + 1}}{n + 1}$$$ $$$\left(n \neq -1 \right)$$$ com $$$n=2$$$:

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

Portanto,

$$\int{\frac{a^{2}}{2} d a} = \frac{a^{3}}{6}$$

Adicione a constante de integração:

$$\int{\frac{a^{2}}{2} d a} = \frac{a^{3}}{6}+C$$

$$$\int \frac{a^{2}}{2}\, da = \frac{a^{3}}{6} + C$$$A