Sr Examen

Derivada de (x×sin(nx))/|x|

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

Gráfico:

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Solución

Ha introducido [src]
x*sin(n*x)
----------
   |x|    
$$\frac{x \sin{\left(n x \right)}}{\left|{x}\right|}$$
(x*sin(n*x))/|x|
Primera derivada [src]
n*x*cos(n*x) + sin(n*x)   sign(x)*sin(n*x)
----------------------- - ----------------
          |x|                    x        
$$\frac{n x \cos{\left(n x \right)} + \sin{\left(n x \right)}}{\left|{x}\right|} - \frac{\sin{\left(n x \right)} \operatorname{sign}{\left(x \right)}}{x}$$
Segunda derivada [src]
 /                                   /  sign(x)                \                                               \
 |                                 2*|- ------- + DiracDelta(x)|*sin(n*x)                                      |
 |n*(-2*cos(n*x) + n*x*sin(n*x))     \     x                   /            2*(n*x*cos(n*x) + sin(n*x))*sign(x)|
-|------------------------------ + -------------------------------------- + -----------------------------------|
 |             |x|                                   x                                        2                |
 \                                                                                           x                 /
$$- (\frac{n \left(n x \sin{\left(n x \right)} - 2 \cos{\left(n x \right)}\right)}{\left|{x}\right|} + \frac{2 \left(\delta\left(x\right) - \frac{\operatorname{sign}{\left(x \right)}}{x}\right) \sin{\left(n x \right)}}{x} + \frac{2 \left(n x \cos{\left(n x \right)} + \sin{\left(n x \right)}\right) \operatorname{sign}{\left(x \right)}}{x^{2}})$$
Tercera derivada [src]
                                                                                               /  4*DiracDelta(x)   3*sign(x)                   \                                                    
                                     /  sign(x)                \                             2*|- --------------- + --------- + DiracDelta(x, 1)|*sin(n*x)                                           
   2                               6*|- ------- + DiracDelta(x)|*(n*x*cos(n*x) + sin(n*x))     |         x               2                      |                                                    
  n *(3*sin(n*x) + n*x*cos(n*x))     \     x                   /                               \                        x                       /            3*n*(-2*cos(n*x) + n*x*sin(n*x))*sign(x)
- ------------------------------ - ------------------------------------------------------- - ------------------------------------------------------------- + ----------------------------------------
               |x|                                             2                                                           x                                                     2                   
                                                              x                                                                                                                 x                    
$$- \frac{n^{2} \left(n x \cos{\left(n x \right)} + 3 \sin{\left(n x \right)}\right)}{\left|{x}\right|} + \frac{3 n \left(n x \sin{\left(n x \right)} - 2 \cos{\left(n x \right)}\right) \operatorname{sign}{\left(x \right)}}{x^{2}} - \frac{2 \left(\delta^{\left( 1 \right)}\left( x \right) - \frac{4 \delta\left(x\right)}{x} + \frac{3 \operatorname{sign}{\left(x \right)}}{x^{2}}\right) \sin{\left(n x \right)}}{x} - \frac{6 \left(n x \cos{\left(n x \right)} + \sin{\left(n x \right)}\right) \left(\delta\left(x\right) - \frac{\operatorname{sign}{\left(x \right)}}{x}\right)}{x^{2}}$$