Sr Examen

Otras calculadoras

Suma de la serie 2n+1/√n2^n



=

Solución

Ha introducido [src]
  oo                 
____                 
\   `                
 \    /         1   \
  \   |2*n + -------|
   )  |            n|
  /   |        ____ |
 /    \      \/ n2  /
/___,                
n = 1                
$$\sum_{n=1}^{\infty} \left(2 n + \frac{1}{\left(\sqrt{n_{2}}\right)^{n}}\right)$$
Sum(2*n + 1/((sqrt(n2))^n), (n, 1, oo))
Respuesta [src]
     //         1                  1        \
     ||-------------------  for -------- < 1|
     ||  ____ /      1   \      |  ____|    |
     ||\/ n2 *|1 - ------|      |\/ n2 |    |
     ||       |      ____|                  |
     ||       \    \/ n2 /                  |
     ||                                     |
     ||      oo                             |
oo + |<    ____                             |
     ||    \   `                            |
     ||     \      -n                       |
     ||      \     ---                      |
     ||      /      2          otherwise    |
     ||     /    n2                         |
     ||    /___,                            |
     ||    n = 1                            |
     \\                                     /
$$\begin{cases} \frac{1}{\sqrt{n_{2}} \left(1 - \frac{1}{\sqrt{n_{2}}}\right)} & \text{for}\: \frac{1}{\left|{\sqrt{n_{2}}}\right|} < 1 \\\sum_{n=1}^{\infty} n_{2}^{- \frac{n}{2}} & \text{otherwise} \end{cases} + \infty$$
oo + Piecewise((1/(sqrt(n2)*(1 - 1/sqrt(n2))), 1/Abs(sqrt(n2)) < 1), (Sum(n2^(-n/2), (n, 1, oo)), True))

    Ejemplos de hallazgo de la suma de la serie