Integral de (2*x*x-5)/(x*x*x*x-5*x*x+6) dx
Solución
Respuesta (Indefinida)
[src]
// / ___\ \ // / ___\ \
|| ___ |x*\/ 2 | | || ___ |x*\/ 3 | |
||-\/ 2 *acoth|-------| | ||-\/ 3 *acoth|-------| |
/ || \ 2 / 2 | || \ 3 / 2 |
| ||---------------------- for x > 2| ||---------------------- for x > 3|
| 2*x*x - 5 || 2 | || 3 |
| ------------------- dx = C + |< | + |< |
| x*x*x*x - 5*x*x + 6 || / ___\ | || / ___\ |
| || ___ |x*\/ 2 | | || ___ |x*\/ 3 | |
/ ||-\/ 2 *atanh|-------| | ||-\/ 3 *atanh|-------| |
|| \ 2 / 2 | || \ 3 / 2 |
||---------------------- for x < 2| ||---------------------- for x < 3|
\\ 2 / \\ 3 /
∫ x 2 x − 5 ( − x 5 x + x x x x ) + 6 d x = C + { − 2 acoth ( 2 x 2 ) 2 for x 2 > 2 − 2 atanh ( 2 x 2 ) 2 for x 2 < 2 + { − 3 acoth ( 3 x 3 ) 3 for x 2 > 3 − 3 atanh ( 3 x 3 ) 3 for x 2 < 3 \int \frac{x 2 x - 5}{\left(- x 5 x + x x x x\right) + 6}\, dx = C + \begin{cases} - \frac{\sqrt{2} \operatorname{acoth}{\left(\frac{\sqrt{2} x}{2} \right)}}{2} & \text{for}\: x^{2} > 2 \\- \frac{\sqrt{2} \operatorname{atanh}{\left(\frac{\sqrt{2} x}{2} \right)}}{2} & \text{for}\: x^{2} < 2 \end{cases} + \begin{cases} - \frac{\sqrt{3} \operatorname{acoth}{\left(\frac{\sqrt{3} x}{3} \right)}}{3} & \text{for}\: x^{2} > 3 \\- \frac{\sqrt{3} \operatorname{atanh}{\left(\frac{\sqrt{3} x}{3} \right)}}{3} & \text{for}\: x^{2} < 3 \end{cases} ∫ ( − x 5 x + xxxx ) + 6 x 2 x − 5 d x = C + ⎩ ⎨ ⎧ − 2 2 acoth ( 2 2 x ) − 2 2 atanh ( 2 2 x ) for x 2 > 2 for x 2 < 2 + ⎩ ⎨ ⎧ − 3 3 acoth ( 3 3 x ) − 3 3 atanh ( 3 3 x ) for x 2 > 3 for x 2 < 3
Gráfica
0.00 1.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 -2.0 -0.5
___ / / ___\\ ___ / ___\ ___ / / ___\\ ___ / ___\ ___ / / ___\\ ___ / ___\ ___ / / ___\\ ___ / ___\
\/ 2 *\pi*I + log\\/ 2 // \/ 2 *log\1 + \/ 2 / \/ 3 *\pi*I + log\\/ 3 // \/ 3 *log\1 + \/ 3 / \/ 2 *\pi*I + log\-1 + \/ 2 // \/ 2 *log\\/ 2 / \/ 3 *\pi*I + log\-1 + \/ 3 // \/ 3 *log\\/ 3 /
- ------------------------- - -------------------- - ------------------------- - -------------------- + ------------------------------ + ---------------- + ------------------------------ + ----------------
4 4 6 6 4 4 6 6
− 2 log ( 1 + 2 ) 4 − 3 log ( 1 + 3 ) 6 + 2 log ( 2 ) 4 + 3 log ( 3 ) 6 − 2 ( log ( 2 ) + i π ) 4 − 3 ( log ( 3 ) + i π ) 6 + 3 ( log ( − 1 + 3 ) + i π ) 6 + 2 ( log ( − 1 + 2 ) + i π ) 4 - \frac{\sqrt{2} \log{\left(1 + \sqrt{2} \right)}}{4} - \frac{\sqrt{3} \log{\left(1 + \sqrt{3} \right)}}{6} + \frac{\sqrt{2} \log{\left(\sqrt{2} \right)}}{4} + \frac{\sqrt{3} \log{\left(\sqrt{3} \right)}}{6} - \frac{\sqrt{2} \left(\log{\left(\sqrt{2} \right)} + i \pi\right)}{4} - \frac{\sqrt{3} \left(\log{\left(\sqrt{3} \right)} + i \pi\right)}{6} + \frac{\sqrt{3} \left(\log{\left(-1 + \sqrt{3} \right)} + i \pi\right)}{6} + \frac{\sqrt{2} \left(\log{\left(-1 + \sqrt{2} \right)} + i \pi\right)}{4} − 4 2 log ( 1 + 2 ) − 6 3 log ( 1 + 3 ) + 4 2 log ( 2 ) + 6 3 log ( 3 ) − 4 2 ( log ( 2 ) + iπ ) − 6 3 ( log ( 3 ) + iπ ) + 6 3 ( log ( − 1 + 3 ) + iπ ) + 4 2 ( log ( − 1 + 2 ) + iπ )
=
___ / / ___\\ ___ / ___\ ___ / / ___\\ ___ / ___\ ___ / / ___\\ ___ / ___\ ___ / / ___\\ ___ / ___\
\/ 2 *\pi*I + log\\/ 2 // \/ 2 *log\1 + \/ 2 / \/ 3 *\pi*I + log\\/ 3 // \/ 3 *log\1 + \/ 3 / \/ 2 *\pi*I + log\-1 + \/ 2 // \/ 2 *log\\/ 2 / \/ 3 *\pi*I + log\-1 + \/ 3 // \/ 3 *log\\/ 3 /
- ------------------------- - -------------------- - ------------------------- - -------------------- + ------------------------------ + ---------------- + ------------------------------ + ----------------
4 4 6 6 4 4 6 6
− 2 log ( 1 + 2 ) 4 − 3 log ( 1 + 3 ) 6 + 2 log ( 2 ) 4 + 3 log ( 3 ) 6 − 2 ( log ( 2 ) + i π ) 4 − 3 ( log ( 3 ) + i π ) 6 + 3 ( log ( − 1 + 3 ) + i π ) 6 + 2 ( log ( − 1 + 2 ) + i π ) 4 - \frac{\sqrt{2} \log{\left(1 + \sqrt{2} \right)}}{4} - \frac{\sqrt{3} \log{\left(1 + \sqrt{3} \right)}}{6} + \frac{\sqrt{2} \log{\left(\sqrt{2} \right)}}{4} + \frac{\sqrt{3} \log{\left(\sqrt{3} \right)}}{6} - \frac{\sqrt{2} \left(\log{\left(\sqrt{2} \right)} + i \pi\right)}{4} - \frac{\sqrt{3} \left(\log{\left(\sqrt{3} \right)} + i \pi\right)}{6} + \frac{\sqrt{3} \left(\log{\left(-1 + \sqrt{3} \right)} + i \pi\right)}{6} + \frac{\sqrt{2} \left(\log{\left(-1 + \sqrt{2} \right)} + i \pi\right)}{4} − 4 2 log ( 1 + 2 ) − 6 3 log ( 1 + 3 ) + 4 2 log ( 2 ) + 6 3 log ( 3 ) − 4 2 ( log ( 2 ) + iπ ) − 6 3 ( log ( 3 ) + iπ ) + 6 3 ( log ( − 1 + 3 ) + iπ ) + 4 2 ( log ( − 1 + 2 ) + iπ )
-sqrt(2)*(pi*i + log(sqrt(2)))/4 - sqrt(2)*log(1 + sqrt(2))/4 - sqrt(3)*(pi*i + log(sqrt(3)))/6 - sqrt(3)*log(1 + sqrt(3))/6 + sqrt(2)*(pi*i + log(-1 + sqrt(2)))/4 + sqrt(2)*log(sqrt(2))/4 + sqrt(3)*(pi*i + log(-1 + sqrt(3)))/6 + sqrt(3)*log(sqrt(3))/6
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.