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Segunda derivada de $$$3^{x}$$$
Calculadoras relacionadas: Calculadora de derivadas, Calculadora de diferenciación logarítmica
Tu entrada
Halla $$$\frac{d^{2}}{dx^{2}} \left(3^{x}\right)$$$.
Solución
Calcule la primera derivada $$$\frac{d}{dx} \left(3^{x}\right)$$$
Aplica la regla de los exponentes $$$\frac{d}{dx} \left(n^{x}\right) = n^{x} \ln\left(n\right)$$$ con $$$n = 3$$$:
$${\color{red}\left(\frac{d}{dx} \left(3^{x}\right)\right)} = {\color{red}\left(3^{x} \ln\left(3\right)\right)}$$Por lo tanto, $$$\frac{d}{dx} \left(3^{x}\right) = 3^{x} \ln\left(3\right)$$$.
A continuación, $$$\frac{d^{2}}{dx^{2}} \left(3^{x}\right) = \frac{d}{dx} \left(3^{x} \ln\left(3\right)\right)$$$
Aplica la regla del factor constante $$$\frac{d}{dx} \left(c f{\left(x \right)}\right) = c \frac{d}{dx} \left(f{\left(x \right)}\right)$$$ con $$$c = \ln\left(3\right)$$$ y $$$f{\left(x \right)} = 3^{x}$$$:
$${\color{red}\left(\frac{d}{dx} \left(3^{x} \ln\left(3\right)\right)\right)} = {\color{red}\left(\ln\left(3\right) \frac{d}{dx} \left(3^{x}\right)\right)}$$Aplica la regla de los exponentes $$$\frac{d}{dx} \left(n^{x}\right) = n^{x} \ln\left(n\right)$$$ con $$$n = 3$$$:
$$\ln\left(3\right) {\color{red}\left(\frac{d}{dx} \left(3^{x}\right)\right)} = \ln\left(3\right) {\color{red}\left(3^{x} \ln\left(3\right)\right)}$$Por lo tanto, $$$\frac{d}{dx} \left(3^{x} \ln\left(3\right)\right) = 3^{x} \ln^{2}\left(3\right)$$$.
Por lo tanto, $$$\frac{d^{2}}{dx^{2}} \left(3^{x}\right) = 3^{x} \ln^{2}\left(3\right)$$$.
Respuesta
$$$\frac{d^{2}}{dx^{2}} \left(3^{x}\right) = 3^{x} \ln^{2}\left(3\right)$$$A