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¿Cómo vas a descomponer esta atan(x)/4-atan(x)/(2*(1+x^2))+x/(4*(1+x^2)) expresión en fracciones?

Expresión a simplificar:

Solución

Ha introducido [src]
atan(x)    atan(x)         x     
------- - ---------- + ----------
   4        /     2\     /     2\
          2*\1 + x /   4*\1 + x /
$$\frac{x}{4 \left(x^{2} + 1\right)} + \left(\frac{\operatorname{atan}{\left(x \right)}}{4} - \frac{\operatorname{atan}{\left(x \right)}}{2 \left(x^{2} + 1\right)}\right)$$
atan(x)/4 - atan(x)/(2*(1 + x^2)) + x/((4*(1 + x^2)))
Simplificación general [src]
               2        
x - atan(x) + x *atan(x)
------------------------
         /     2\       
       4*\1 + x /       
$$\frac{x^{2} \operatorname{atan}{\left(x \right)} + x - \operatorname{atan}{\left(x \right)}}{4 \left(x^{2} + 1\right)}$$
(x - atan(x) + x^2*atan(x))/(4*(1 + x^2))
Compilar la expresión [src]
atan(x)      x       atan(x) 
------- + -------- - --------
   4             2          2
          4 + 4*x    2 + 2*x 
$$\frac{x}{4 x^{2} + 4} + \frac{\operatorname{atan}{\left(x \right)}}{4} - \frac{\operatorname{atan}{\left(x \right)}}{2 x^{2} + 2}$$
atan(x)/4 + x/(4 + 4*x^2) - atan(x)/(2 + 2*x^2)
Denominador racional [src]
  /       2\   /       2\ /             /       2\        \
x*\8 + 8*x / + \4 + 4*x /*\-4*atan(x) + \2 + 2*x /*atan(x)/
-----------------------------------------------------------
                   /       2\ /       2\                   
                   \4 + 4*x /*\8 + 8*x /                   
$$\frac{x \left(8 x^{2} + 8\right) + \left(4 x^{2} + 4\right) \left(\left(2 x^{2} + 2\right) \operatorname{atan}{\left(x \right)} - 4 \operatorname{atan}{\left(x \right)}\right)}{\left(4 x^{2} + 4\right) \left(8 x^{2} + 8\right)}$$
(x*(8 + 8*x^2) + (4 + 4*x^2)*(-4*atan(x) + (2 + 2*x^2)*atan(x)))/((4 + 4*x^2)*(8 + 8*x^2))
Potencias [src]
atan(x)      x       atan(x) 
------- + -------- - --------
   4             2          2
          4 + 4*x    2 + 2*x 
$$\frac{x}{4 x^{2} + 4} + \frac{\operatorname{atan}{\left(x \right)}}{4} - \frac{\operatorname{atan}{\left(x \right)}}{2 x^{2} + 2}$$
atan(x)/4 + x/(4 + 4*x^2) - atan(x)/(2 + 2*x^2)
Parte trigonométrica [src]
atan(x)      x       atan(x) 
------- + -------- - --------
   4             2          2
          4 + 4*x    2 + 2*x 
$$\frac{x}{4 x^{2} + 4} + \frac{\operatorname{atan}{\left(x \right)}}{4} - \frac{\operatorname{atan}{\left(x \right)}}{2 x^{2} + 2}$$
atan(x)/4 + x/(4 + 4*x^2) - atan(x)/(2 + 2*x^2)
Abrimos la expresión [src]
atan(x)    atan(x)         x     
------- - ---------- + ----------
   4        /     2\     /     2\
          2*\1 + x /   4*\1 + x /
$$\frac{x}{4 \left(x^{2} + 1\right)} + \frac{\operatorname{atan}{\left(x \right)}}{4} - \frac{\operatorname{atan}{\left(x \right)}}{2 \left(x^{2} + 1\right)}$$
atan(x)/4 - atan(x)/(2*(1 + x^2)) + x/(4*(1 + x^2))
Denominador común [src]
atan(x)   x - 2*atan(x)
------- + -------------
   4                2  
             4 + 4*x   
$$\frac{x - 2 \operatorname{atan}{\left(x \right)}}{4 x^{2} + 4} + \frac{\operatorname{atan}{\left(x \right)}}{4}$$
atan(x)/4 + (x - 2*atan(x))/(4 + 4*x^2)
Unión de expresiones racionales [src]
    /      2\        
x + \-1 + x /*atan(x)
---------------------
        /     2\     
      4*\1 + x /     
$$\frac{x + \left(x^{2} - 1\right) \operatorname{atan}{\left(x \right)}}{4 \left(x^{2} + 1\right)}$$
(x + (-1 + x^2)*atan(x))/(4*(1 + x^2))
Respuesta numérica [src]
0.25*atan(x) + x/(4.0 + 4.0*x^2) - atan(x)/(2.0 + 2.0*x^2)
0.25*atan(x) + x/(4.0 + 4.0*x^2) - atan(x)/(2.0 + 2.0*x^2)
Combinatoria [src]
               2        
x - atan(x) + x *atan(x)
------------------------
         /     2\       
       4*\1 + x /       
$$\frac{x^{2} \operatorname{atan}{\left(x \right)} + x - \operatorname{atan}{\left(x \right)}}{4 \left(x^{2} + 1\right)}$$
(x - atan(x) + x^2*atan(x))/(4*(1 + x^2))