Integral de (x-6)/((x^3+6)) dx
Solución
Solución detallada
Vuelva a escribir el integrando:
x − 6 x 3 + 6 = x x 3 + 6 − 6 x 3 + 6 \frac{x - 6}{x^{3} + 6} = \frac{x}{x^{3} + 6} - \frac{6}{x^{3} + 6} x 3 + 6 x − 6 = x 3 + 6 x − x 3 + 6 6
Integramos término a término:
No puedo encontrar los pasos en la búsqueda de esta integral.
Pero la integral
− 6 2 3 log ( x + 6 3 ) 18 + 6 2 3 log ( x 2 − 6 3 x + 6 2 3 ) 36 + 2 2 3 3 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 6 - \frac{6^{\frac{2}{3}} \log{\left(x + \sqrt[3]{6} \right)}}{18} + \frac{6^{\frac{2}{3}} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{36} + \frac{2^{\frac{2}{3}} \sqrt[6]{3} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{6} − 18 6 3 2 l o g ( x + 3 6 ) + 36 6 3 2 l o g ( x 2 − 3 6 x + 6 3 2 ) + 6 2 3 2 6 3 atan ( 3 2 3 2 6 3 x − 3 3 )
La integral del producto de una función por una constante es la constante por la integral de esta función:
∫ ( − 6 x 3 + 6 ) d x = − 6 ∫ 1 x 3 + 6 d x \int \left(- \frac{6}{x^{3} + 6}\right)\, dx = - 6 \int \frac{1}{x^{3} + 6}\, dx ∫ ( − x 3 + 6 6 ) d x = − 6 ∫ x 3 + 6 1 d x
No puedo encontrar los pasos en la búsqueda de esta integral.
Pero la integral
6 3 log ( x + 6 3 ) 18 − 6 3 log ( x 2 − 6 3 x + 6 2 3 ) 36 + 2 3 ⋅ 3 5 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 18 \frac{\sqrt[3]{6} \log{\left(x + \sqrt[3]{6} \right)}}{18} - \frac{\sqrt[3]{6} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{36} + \frac{\sqrt[3]{2} \cdot 3^{\frac{5}{6}} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{18} 18 3 6 l o g ( x + 3 6 ) − 36 3 6 l o g ( x 2 − 3 6 x + 6 3 2 ) + 18 3 2 ⋅ 3 6 5 atan ( 3 2 3 2 6 3 x − 3 3 )
Por lo tanto, el resultado es: − 6 3 log ( x + 6 3 ) 3 + 6 3 log ( x 2 − 6 3 x + 6 2 3 ) 6 − 2 3 ⋅ 3 5 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 3 - \frac{\sqrt[3]{6} \log{\left(x + \sqrt[3]{6} \right)}}{3} + \frac{\sqrt[3]{6} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{6} - \frac{\sqrt[3]{2} \cdot 3^{\frac{5}{6}} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{3} − 3 3 6 l o g ( x + 3 6 ) + 6 3 6 l o g ( x 2 − 3 6 x + 6 3 2 ) − 3 3 2 ⋅ 3 6 5 atan ( 3 2 3 2 6 3 x − 3 3 )
El resultado es: − 6 3 log ( x + 6 3 ) 3 − 6 2 3 log ( x + 6 3 ) 18 + 6 2 3 log ( x 2 − 6 3 x + 6 2 3 ) 36 + 6 3 log ( x 2 − 6 3 x + 6 2 3 ) 6 − 2 3 ⋅ 3 5 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 3 + 2 2 3 3 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 6 - \frac{\sqrt[3]{6} \log{\left(x + \sqrt[3]{6} \right)}}{3} - \frac{6^{\frac{2}{3}} \log{\left(x + \sqrt[3]{6} \right)}}{18} + \frac{6^{\frac{2}{3}} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{36} + \frac{\sqrt[3]{6} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{6} - \frac{\sqrt[3]{2} \cdot 3^{\frac{5}{6}} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{3} + \frac{2^{\frac{2}{3}} \sqrt[6]{3} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{6} − 3 3 6 l o g ( x + 3 6 ) − 18 6 3 2 l o g ( x + 3 6 ) + 36 6 3 2 l o g ( x 2 − 3 6 x + 6 3 2 ) + 6 3 6 l o g ( x 2 − 3 6 x + 6 3 2 ) − 3 3 2 ⋅ 3 6 5 atan ( 3 2 3 2 6 3 x − 3 3 ) + 6 2 3 2 6 3 atan ( 3 2 3 2 6 3 x − 3 3 )
Añadimos la constante de integración:
− 6 3 log ( x + 6 3 ) 3 − 6 2 3 log ( x + 6 3 ) 18 + 6 2 3 log ( x 2 − 6 3 x + 6 2 3 ) 36 + 6 3 log ( x 2 − 6 3 x + 6 2 3 ) 6 − 2 3 ⋅ 3 5 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 3 + 2 2 3 3 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 6 + c o n s t a n t - \frac{\sqrt[3]{6} \log{\left(x + \sqrt[3]{6} \right)}}{3} - \frac{6^{\frac{2}{3}} \log{\left(x + \sqrt[3]{6} \right)}}{18} + \frac{6^{\frac{2}{3}} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{36} + \frac{\sqrt[3]{6} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{6} - \frac{\sqrt[3]{2} \cdot 3^{\frac{5}{6}} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{3} + \frac{2^{\frac{2}{3}} \sqrt[6]{3} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{6}+ \mathrm{constant} − 3 3 6 l o g ( x + 3 6 ) − 18 6 3 2 l o g ( x + 3 6 ) + 36 6 3 2 l o g ( x 2 − 3 6 x + 6 3 2 ) + 6 3 6 l o g ( x 2 − 3 6 x + 6 3 2 ) − 3 3 2 ⋅ 3 6 5 atan ( 3 2 3 2 6 3 x − 3 3 ) + 6 2 3 2 6 3 atan ( 3 2 3 2 6 3 x − 3 3 ) + constant
Respuesta:
− 6 3 log ( x + 6 3 ) 3 − 6 2 3 log ( x + 6 3 ) 18 + 6 2 3 log ( x 2 − 6 3 x + 6 2 3 ) 36 + 6 3 log ( x 2 − 6 3 x + 6 2 3 ) 6 − 2 3 ⋅ 3 5 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 3 + 2 2 3 3 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 6 + c o n s t a n t - \frac{\sqrt[3]{6} \log{\left(x + \sqrt[3]{6} \right)}}{3} - \frac{6^{\frac{2}{3}} \log{\left(x + \sqrt[3]{6} \right)}}{18} + \frac{6^{\frac{2}{3}} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{36} + \frac{\sqrt[3]{6} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{6} - \frac{\sqrt[3]{2} \cdot 3^{\frac{5}{6}} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{3} + \frac{2^{\frac{2}{3}} \sqrt[6]{3} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{6}+ \mathrm{constant} − 3 3 6 l o g ( x + 3 6 ) − 18 6 3 2 l o g ( x + 3 6 ) + 36 6 3 2 l o g ( x 2 − 3 6 x + 6 3 2 ) + 6 3 6 l o g ( x 2 − 3 6 x + 6 3 2 ) − 3 3 2 ⋅ 3 6 5 atan ( 3 2 3 2 6 3 x − 3 3 ) + 6 2 3 2 6 3 atan ( 3 2 3 2 6 3 x − 3 3 ) + constant
Respuesta (Indefinida)
[src]
/ ___ 2/3 6 ___\ / ___ 2/3 6 ___\
/ 3 ___ 5/6 | \/ 3 x*2 *\/ 3 | 2/3 6 ___ | \/ 3 x*2 *\/ 3 |
| 3 ___ / 3 ___\ 2/3 / 3 ___\ 3 ___ / 2/3 2 3 ___\ 2/3 / 2/3 2 3 ___\ \/ 2 *3 *atan|- ----- + ------------| 2 *\/ 3 *atan|- ----- + ------------|
| x - 6 \/ 6 *log\x + \/ 6 / 6 *log\x + \/ 6 / \/ 6 *log\6 + x - x*\/ 6 / 6 *log\6 + x - x*\/ 6 / \ 3 3 / \ 3 3 /
| ------ dx = C - -------------------- - ------------------- + ------------------------------ + ----------------------------- - --------------------------------------- + ---------------------------------------
| 3 3 18 6 36 3 6
| x + 6
|
/
∫ x − 6 x 3 + 6 d x = C − 6 3 log ( x + 6 3 ) 3 − 6 2 3 log ( x + 6 3 ) 18 + 6 2 3 log ( x 2 − 6 3 x + 6 2 3 ) 36 + 6 3 log ( x 2 − 6 3 x + 6 2 3 ) 6 − 2 3 ⋅ 3 5 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 3 + 2 2 3 3 6 atan ( 2 2 3 3 6 x 3 − 3 3 ) 6 \int \frac{x - 6}{x^{3} + 6}\, dx = C - \frac{\sqrt[3]{6} \log{\left(x + \sqrt[3]{6} \right)}}{3} - \frac{6^{\frac{2}{3}} \log{\left(x + \sqrt[3]{6} \right)}}{18} + \frac{6^{\frac{2}{3}} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{36} + \frac{\sqrt[3]{6} \log{\left(x^{2} - \sqrt[3]{6} x + 6^{\frac{2}{3}} \right)}}{6} - \frac{\sqrt[3]{2} \cdot 3^{\frac{5}{6}} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{3} + \frac{2^{\frac{2}{3}} \sqrt[6]{3} \operatorname{atan}{\left(\frac{2^{\frac{2}{3}} \sqrt[6]{3} x}{3} - \frac{\sqrt{3}}{3} \right)}}{6} ∫ x 3 + 6 x − 6 d x = C − 3 3 6 log ( x + 3 6 ) − 18 6 3 2 log ( x + 3 6 ) + 36 6 3 2 log ( x 2 − 3 6 x + 6 3 2 ) + 6 3 6 log ( x 2 − 3 6 x + 6 3 2 ) − 3 3 2 ⋅ 3 6 5 atan ( 3 2 3 2 6 3 x − 3 3 ) + 6 2 3 2 6 3 atan ( 3 2 3 2 6 3 x − 3 3 )
Gráfica
0.00 1.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 2.5 -2.5
/ / 2\\ / / 2\\
| 3 |12 108*t 54*t || | 3 |47 108*t 54*t ||
- RootSum|162*t - 54*t + 37, t -> t*log|-- - ----- - -----|| + RootSum|162*t - 54*t + 37, t -> t*log|-- - ----- - -----||
\ \35 35 35 // \ \35 35 35 //
− RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 54 t 2 35 − 108 t 35 + 12 35 ) ) ) + RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 54 t 2 35 − 108 t 35 + 47 35 ) ) ) - \operatorname{RootSum} {\left(162 t^{3} - 54 t + 37, \left( t \mapsto t \log{\left(- \frac{54 t^{2}}{35} - \frac{108 t}{35} + \frac{12}{35} \right)} \right)\right)} + \operatorname{RootSum} {\left(162 t^{3} - 54 t + 37, \left( t \mapsto t \log{\left(- \frac{54 t^{2}}{35} - \frac{108 t}{35} + \frac{47}{35} \right)} \right)\right)} − RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 35 54 t 2 − 35 108 t + 35 12 ) ) ) + RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 35 54 t 2 − 35 108 t + 35 47 ) ) )
=
/ / 2\\ / / 2\\
| 3 |12 108*t 54*t || | 3 |47 108*t 54*t ||
- RootSum|162*t - 54*t + 37, t -> t*log|-- - ----- - -----|| + RootSum|162*t - 54*t + 37, t -> t*log|-- - ----- - -----||
\ \35 35 35 // \ \35 35 35 //
− RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 54 t 2 35 − 108 t 35 + 12 35 ) ) ) + RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 54 t 2 35 − 108 t 35 + 47 35 ) ) ) - \operatorname{RootSum} {\left(162 t^{3} - 54 t + 37, \left( t \mapsto t \log{\left(- \frac{54 t^{2}}{35} - \frac{108 t}{35} + \frac{12}{35} \right)} \right)\right)} + \operatorname{RootSum} {\left(162 t^{3} - 54 t + 37, \left( t \mapsto t \log{\left(- \frac{54 t^{2}}{35} - \frac{108 t}{35} + \frac{47}{35} \right)} \right)\right)} − RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 35 54 t 2 − 35 108 t + 35 12 ) ) ) + RootSum ( 162 t 3 − 54 t + 37 , ( t ↦ t log ( − 35 54 t 2 − 35 108 t + 35 47 ) ) )
-RootSum(162*_t^3 - 54*_t + 37, Lambda(_t, _t*log(12/35 - 108*_t/35 - 54*_t^2/35))) + RootSum(162*_t^3 - 54*_t + 37, Lambda(_t, _t*log(47/35 - 108*_t/35 - 54*_t^2/35)))
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.