Afgeleide van $$$- \frac{141 p t}{800} + \frac{1673}{500}$$$ naar $$$t$$$

De afgeleide van een som/verschil is de som/het verschil van de afgeleiden:

$${\color{red}\left(\frac{d}{dt} \left(- \frac{141 p t}{800} + \frac{1673}{500}\right)\right)} = {\color{red}\left(- \frac{d}{dt} \left(\frac{141 p t}{800}\right) + \frac{d}{dt} \left(\frac{1673}{500}\right)\right)}$$

Pas de regel van de constante factor $$$\frac{d}{dt} \left(c f{\left(t \right)}\right) = c \frac{d}{dt} \left(f{\left(t \right)}\right)$$$ toe met $$$c = \frac{141 p}{800}$$$ en $$$f{\left(t \right)} = t$$$:

$$- {\color{red}\left(\frac{d}{dt} \left(\frac{141 p t}{800}\right)\right)} + \frac{d}{dt} \left(\frac{1673}{500}\right) = - {\color{red}\left(\frac{141 p}{800} \frac{d}{dt} \left(t\right)\right)} + \frac{d}{dt} \left(\frac{1673}{500}\right)$$

Pas de machtsregel $$$\frac{d}{dt} \left(t^{n}\right) = n t^{n - 1}$$$ toe met $$$n = 1$$$, met andere woorden, $$$\frac{d}{dt} \left(t\right) = 1$$$:

$$- \frac{141 p {\color{red}\left(\frac{d}{dt} \left(t\right)\right)}}{800} + \frac{d}{dt} \left(\frac{1673}{500}\right) = - \frac{141 p {\color{red}\left(1\right)}}{800} + \frac{d}{dt} \left(\frac{1673}{500}\right)$$

De afgeleide van een constante is $$$0$$$:

$$- \frac{141 p}{800} + {\color{red}\left(\frac{d}{dt} \left(\frac{1673}{500}\right)\right)} = - \frac{141 p}{800} + {\color{red}\left(0\right)}$$

Dus, $$$\frac{d}{dt} \left(- \frac{141 p t}{800} + \frac{1673}{500}\right) = - \frac{141 p}{800}$$$.