Sr Examen

Derivada de x*sin|x|

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

Gráfico:

interior superior

Definida a trozos:

Solución

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