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Integral de lnt/(t-3) dx

Límites de integración:

interior superior
v

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
  1          
  /          
 |           
 |  log(t)   
 |  ------ dt
 |  t - 3    
 |           
/            
0            
$$\int\limits_{0}^{1} \frac{\log{\left(t \right)}}{t - 3}\, dt$$
Integral(log(t)/(t - 3), (t, 0, 1))
Respuesta (Indefinida) [src]
                   //                                     /             pi*I\                                                                    \
                   ||                                     |   (-3 + t)*e    |                                                                    |
                   ||                            - polylog|2, --------------| + log(3)*log(-3 + t)                               for |-3 + t| < 1|
                   ||                                     \         3       /                                                                    |
  /                ||                                                                                                                            |
 |                 ||                                     /             pi*I\                                                                    |
 | log(t)          ||                                     |   (-3 + t)*e    |             /  1   \                                      1        |
 | ------ dt = C + |<                            - polylog|2, --------------| - log(3)*log|------|                               for -------- < 1|
 | t - 3           ||                                     \         3       /             \-3 + t/                                   |-3 + t|    |
 |                 ||                                                                                                                            |
/                  ||         /             pi*I\                                                                                                |
                   ||         |   (-3 + t)*e    |           __0, 2 /1, 1       |       \           __2, 0 /      1, 1 |       \                  |
                   ||- polylog|2, --------------| + log(3)*/__     |           | -3 + t| - log(3)*/__     |           | -3 + t|     otherwise    |
                   ||         \         3       /          \_|2, 2 \      0, 0 |       /          \_|2, 2 \0, 0       |       /                  |
                   \\                                                                                                                            /
$$\int \frac{\log{\left(t \right)}}{t - 3}\, dt = C + \begin{cases} \log{\left(3 \right)} \log{\left(t - 3 \right)} - \operatorname{Li}_{2}\left(\frac{\left(t - 3\right) e^{i \pi}}{3}\right) & \text{for}\: \left|{t - 3}\right| < 1 \\- \log{\left(3 \right)} \log{\left(\frac{1}{t - 3} \right)} - \operatorname{Li}_{2}\left(\frac{\left(t - 3\right) e^{i \pi}}{3}\right) & \text{for}\: \frac{1}{\left|{t - 3}\right|} < 1 \\- {G_{2, 2}^{2, 0}\left(\begin{matrix} & 1, 1 \\0, 0 & \end{matrix} \middle| {t - 3} \right)} \log{\left(3 \right)} + {G_{2, 2}^{0, 2}\left(\begin{matrix} 1, 1 & \\ & 0, 0 \end{matrix} \middle| {t - 3} \right)} \log{\left(3 \right)} - \operatorname{Li}_{2}\left(\frac{\left(t - 3\right) e^{i \pi}}{3}\right) & \text{otherwise} \end{cases}$$
Respuesta [src]
                     2                                                  
                   pi                                                   
-polylog(2, 2/3) + --- + (pi*I + log(2))*log(3) - (pi*I + log(3))*log(3)
                    6                                                   
$$- \operatorname{Li}_{2}\left(\frac{2}{3}\right) + \frac{\pi^{2}}{6} - \left(\log{\left(3 \right)} + i \pi\right) \log{\left(3 \right)} + \left(\log{\left(2 \right)} + i \pi\right) \log{\left(3 \right)}$$
=
=
                     2                                                  
                   pi                                                   
-polylog(2, 2/3) + --- + (pi*I + log(2))*log(3) - (pi*I + log(3))*log(3)
                    6                                                   
$$- \operatorname{Li}_{2}\left(\frac{2}{3}\right) + \frac{\pi^{2}}{6} - \left(\log{\left(3 \right)} + i \pi\right) \log{\left(3 \right)} + \left(\log{\left(2 \right)} + i \pi\right) \log{\left(3 \right)}$$
-polylog(2, 2/3) + pi^2/6 + (pi*i + log(2))*log(3) - (pi*i + log(3))*log(3)
Respuesta numérica [src]
0.366213229977063
0.366213229977063

    Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.