Integraal van $$$t \sin^{2}{\left(\omega \right)}$$$ met betrekking tot $$$t$$$

Bepaal $$$\int t \sin^{2}{\left(\omega \right)}\, dt$$$.

Pas de constante-veelvoudregel $$$\int c f{\left(t \right)}\, dt = c \int f{\left(t \right)}\, dt$$$ toe met $$$c=\sin^{2}{\left(\omega \right)}$$$ en $$$f{\left(t \right)} = t$$$:

$${\color{red}{\int{t \sin^{2}{\left(\omega \right)} d t}}} = {\color{red}{\sin^{2}{\left(\omega \right)} \int{t d t}}}$$

Pas de machtsregel $$$\int t^{n}\, dt = \frac{t^{n + 1}}{n + 1}$$$ $$$\left(n \neq -1 \right)$$$ toe met $$$n=1$$$:

$$\sin^{2}{\left(\omega \right)} {\color{red}{\int{t d t}}}=\sin^{2}{\left(\omega \right)} {\color{red}{\frac{t^{1 + 1}}{1 + 1}}}=\sin^{2}{\left(\omega \right)} {\color{red}{\left(\frac{t^{2}}{2}\right)}}$$

Dus,

$$\int{t \sin^{2}{\left(\omega \right)} d t} = \frac{t^{2} \sin^{2}{\left(\omega \right)}}{2}$$

Voeg de integratieconstante toe:

$$\int{t \sin^{2}{\left(\omega \right)} d t} = \frac{t^{2} \sin^{2}{\left(\omega \right)}}{2}+C$$

$$$\int t \sin^{2}{\left(\omega \right)}\, dt = \frac{t^{2} \sin^{2}{\left(\omega \right)}}{2} + C$$$A