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Suma de la serie ln^n(2x+1)



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Solución

Ha introducido [src]
  oo               
 ___               
 \  `              
  \      n         
  /   log (2*x + 1)
 /__,              
n = 1              
$$\sum_{n=1}^{\infty} \log{\left(2 x + 1 \right)}^{n}$$
Sum(log(2*x + 1)^n, (n, 1, oo))
Respuesta [src]
/   log(1 + 2*x)                            
| ----------------    for |log(1 + 2*x)| < 1
| 1 - log(1 + 2*x)                          
|                                           
|  oo                                       
< ___                                       
| \  `                                      
|  \      n                                 
|  /   log (1 + 2*x)        otherwise       
| /__,                                      
\n = 1                                      
$$\begin{cases} \frac{\log{\left(2 x + 1 \right)}}{1 - \log{\left(2 x + 1 \right)}} & \text{for}\: \left|{\log{\left(2 x + 1 \right)}}\right| < 1 \\\sum_{n=1}^{\infty} \log{\left(2 x + 1 \right)}^{n} & \text{otherwise} \end{cases}$$
Piecewise((log(1 + 2*x)/(1 - log(1 + 2*x)), Abs(log(1 + 2*x)) < 1), (Sum(log(1 + 2*x)^n, (n, 1, oo)), True))

    Ejemplos de hallazgo de la suma de la serie