Sr Examen

Derivada de xe^(-abs(x))

Función f() - derivada -er orden en el punto
v

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
   -|x|
x*E    
$$e^{- \left|{x}\right|} x$$
x*E^(-|x|)
Primera derivada [src]
 -|x|      -|x|        
E     - x*e    *sign(x)
$$- x e^{- \left|{x}\right|} \operatorname{sign}{\left(x \right)} + e^{- \left|{x}\right|}$$
Segunda derivada [src]
 /              /      2                     \\  -|x|
-\2*sign(x) + x*\- sign (x) + 2*DiracDelta(x)//*e    
$$- \left(x \left(2 \delta\left(x\right) - \operatorname{sign}^{2}{\left(x \right)}\right) + 2 \operatorname{sign}{\left(x \right)}\right) e^{- \left|{x}\right|}$$
Tercera derivada [src]
 /        2                          /    3                                                  \\  -|x|
-\- 3*sign (x) + 6*DiracDelta(x) + x*\sign (x) + 2*DiracDelta(x, 1) - 6*DiracDelta(x)*sign(x)//*e    
$$- \left(x \left(- 6 \delta\left(x\right) \operatorname{sign}{\left(x \right)} + 2 \delta^{\left( 1 \right)}\left( x \right) + \operatorname{sign}^{3}{\left(x \right)}\right) + 6 \delta\left(x\right) - 3 \operatorname{sign}^{2}{\left(x \right)}\right) e^{- \left|{x}\right|}$$