Funktion $$$\cos{\left(x \right)} + 5$$$ derivaatta
Aiheeseen liittyvät laskurit: Logaritmisen derivoinnin laskin, Vaiheittainen implisiittisen derivoinnin laskin
Syötteesi
Määritä $$$\frac{d}{dx} \left(\cos{\left(x \right)} + 5\right)$$$.
Ratkaisu
Summan/erotuksen derivaatta on derivaattojen summa/erotus:
$${\color{red}\left(\frac{d}{dx} \left(\cos{\left(x \right)} + 5\right)\right)} = {\color{red}\left(\frac{d}{dx} \left(\cos{\left(x \right)}\right) + \frac{d}{dx} \left(5\right)\right)}$$Kosinin derivaatta on $$$\frac{d}{dx} \left(\cos{\left(x \right)}\right) = - \sin{\left(x \right)}$$$:
$${\color{red}\left(\frac{d}{dx} \left(\cos{\left(x \right)}\right)\right)} + \frac{d}{dx} \left(5\right) = {\color{red}\left(- \sin{\left(x \right)}\right)} + \frac{d}{dx} \left(5\right)$$Vakion derivaatta on $$$0$$$:
$$- \sin{\left(x \right)} + {\color{red}\left(\frac{d}{dx} \left(5\right)\right)} = - \sin{\left(x \right)} + {\color{red}\left(0\right)}$$Näin ollen, $$$\frac{d}{dx} \left(\cos{\left(x \right)} + 5\right) = - \sin{\left(x \right)}$$$.
Vastaus
$$$\frac{d}{dx} \left(\cos{\left(x \right)} + 5\right) = - \sin{\left(x \right)}$$$A