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Integral de 5*x^5*dx/(3+4*x^5) dx

Límites de integración:

interior superior
v

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
  1            
  /            
 |             
 |       5     
 |    5*x      
 |  -------- dx
 |         5   
 |  3 + 4*x    
 |             
/              
0              
015x54x5+3dx\int\limits_{0}^{1} \frac{5 x^{5}}{4 x^{5} + 3}\, dx
Integral((5*x^5)/(3 + 4*x^5), (x, 0, 1))
Solución detallada
  1. Vuelva a escribir el integrando:

    5x54x5+3=54154(4x5+3)\frac{5 x^{5}}{4 x^{5} + 3} = \frac{5}{4} - \frac{15}{4 \left(4 x^{5} + 3\right)}

  2. Integramos término a término:

    1. La integral de las constantes tienen esta constante multiplicada por la variable de integración:

      54dx=5x4\int \frac{5}{4}\, dx = \frac{5 x}{4}

    1. La integral del producto de una función por una constante es la constante por la integral de esta función:

      (154(4x5+3))dx=1514x5+3dx4\int \left(- \frac{15}{4 \left(4 x^{5} + 3\right)}\right)\, dx = - \frac{15 \int \frac{1}{4 x^{5} + 3}\, dx}{4}

      1. No puedo encontrar los pasos en la búsqueda de esta integral.

        Pero la integral

        RootSum(1012500t51,(ttlog(15t+x)))\operatorname{RootSum} {\left(1012500 t^{5} - 1, \left( t \mapsto t \log{\left(15 t + x \right)} \right)\right)}

      Por lo tanto, el resultado es: 15RootSum(1012500t51,(ttlog(15t+x)))4- \frac{15 \operatorname{RootSum} {\left(1012500 t^{5} - 1, \left( t \mapsto t \log{\left(15 t + x \right)} \right)\right)}}{4}

    El resultado es: 5x415RootSum(1012500t51,(ttlog(15t+x)))4\frac{5 x}{4} - \frac{15 \operatorname{RootSum} {\left(1012500 t^{5} - 1, \left( t \mapsto t \log{\left(15 t + x \right)} \right)\right)}}{4}

  3. Ahora simplificar:

    5x4245log(x+2452)815(245120+2455120245i58+5830)log(x2458+24558245i58+582)415(245120+2455120+245i58+5830)log(x2458+24558+245i58+582)415(2455120245120245i585830)log(x245582458245i58582)415(2455120245120+245i585830)log(x245582458+245i58582)4\frac{5 x}{4} - \frac{\sqrt[5]{24} \log{\left(x + \frac{\sqrt[5]{24}}{2} \right)}}{8} - \frac{15 \left(- \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} \sqrt{5}}{120} + \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} \sqrt{5}}{8} + \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24}}{120} - \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24}}{8} - \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} \right)}}{4}

  4. Añadimos la constante de integración:

    5x4245log(x+2452)815(245120+2455120245i58+5830)log(x2458+24558245i58+582)415(245120+2455120+245i58+5830)log(x2458+24558+245i58+582)415(2455120245120245i585830)log(x245582458245i58582)415(2455120245120+245i585830)log(x245582458+245i58582)4+constant\frac{5 x}{4} - \frac{\sqrt[5]{24} \log{\left(x + \frac{\sqrt[5]{24}}{2} \right)}}{8} - \frac{15 \left(- \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} \sqrt{5}}{120} + \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} \sqrt{5}}{8} + \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24}}{120} - \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24}}{8} - \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} \right)}}{4}+ \mathrm{constant}


Respuesta:

5x4245log(x+2452)815(245120+2455120245i58+5830)log(x2458+24558245i58+582)415(245120+2455120+245i58+5830)log(x2458+24558+245i58+582)415(2455120245120245i585830)log(x245582458245i58582)415(2455120245120+245i585830)log(x245582458+245i58582)4+constant\frac{5 x}{4} - \frac{\sqrt[5]{24} \log{\left(x + \frac{\sqrt[5]{24}}{2} \right)}}{8} - \frac{15 \left(- \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} \sqrt{5}}{120} + \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} \sqrt{5}}{8} + \frac{\sqrt[5]{24} i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24}}{120} - \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24}}{8} - \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} \right)}}{4} - \frac{15 \left(- \frac{\sqrt[5]{24} \sqrt{5}}{120} - \frac{\sqrt[5]{24}}{120} + \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{30}\right) \log{\left(x - \frac{\sqrt[5]{24} \sqrt{5}}{8} - \frac{\sqrt[5]{24}}{8} + \frac{\sqrt[5]{24} i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}}{2} \right)}}{4}+ \mathrm{constant}

Respuesta (Indefinida) [src]
  /                                                                        
 |                                                                         
 |      5                      /         5                          \      
 |   5*x             15*RootSum\1012500*t  - 1, t -> t*log(x + 15*t)/   5*x
 | -------- dx = C - ------------------------------------------------ + ---
 |        5                                 4                            4 
 | 3 + 4*x                                                                 
 |                                                                         
/                                                                          
5x54x5+3dx=C+5x415RootSum(1012500t51,(ttlog(15t+x)))4\int \frac{5 x^{5}}{4 x^{5} + 3}\, dx = C + \frac{5 x}{4} - \frac{15 \operatorname{RootSum} {\left(1012500 t^{5} - 1, \left( t \mapsto t \log{\left(15 t + x \right)} \right)\right)}}{4}
Gráfica
0.001.000.100.200.300.400.500.600.700.800.9002
Respuesta [src]
5            /          5                       \            /          5                          \
- - 5*RootSum\12800000*t  + 3, t -> t*log(-20*t)/ + 5*RootSum\12800000*t  + 3, t -> t*log(1 - 20*t)/
4                                                                                                   
5RootSum(12800000t5+3,(ttlog(20t)))+5RootSum(12800000t5+3,(ttlog(120t)))+54- 5 \operatorname{RootSum} {\left(12800000 t^{5} + 3, \left( t \mapsto t \log{\left(- 20 t \right)} \right)\right)} + 5 \operatorname{RootSum} {\left(12800000 t^{5} + 3, \left( t \mapsto t \log{\left(1 - 20 t \right)} \right)\right)} + \frac{5}{4}
=
=
5            /          5                       \            /          5                          \
- - 5*RootSum\12800000*t  + 3, t -> t*log(-20*t)/ + 5*RootSum\12800000*t  + 3, t -> t*log(1 - 20*t)/
4                                                                                                   
5RootSum(12800000t5+3,(ttlog(20t)))+5RootSum(12800000t5+3,(ttlog(120t)))+54- 5 \operatorname{RootSum} {\left(12800000 t^{5} + 3, \left( t \mapsto t \log{\left(- 20 t \right)} \right)\right)} + 5 \operatorname{RootSum} {\left(12800000 t^{5} + 3, \left( t \mapsto t \log{\left(1 - 20 t \right)} \right)\right)} + \frac{5}{4}
5/4 - 5*RootSum(12800000*_t^5 + 3, Lambda(_t, _t*log(-20*_t))) + 5*RootSum(12800000*_t^5 + 3, Lambda(_t, _t*log(1 - 20*_t)))
Respuesta numérica [src]
0.169276122719971
0.169276122719971

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