Sr Examen

Derivada de |x|*sin(pi*x)

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

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