Integral de 1/(x^2+4*x+1) dx
Solución
Respuesta (Indefinida)
[src]
// / ___ \ \
|| ___ |\/ 3 *(2 + x)| |
||-\/ 3 *acoth|-------------| |
/ || \ 3 / 2 |
| ||---------------------------- for (2 + x) > 3|
| 1 || 3 |
| ------------ dx = C + |< |
| 2 || / ___ \ |
| x + 4*x + 1 || ___ |\/ 3 *(2 + x)| |
| ||-\/ 3 *atanh|-------------| |
/ || \ 3 / 2 |
||---------------------------- for (2 + x) < 3|
\\ 3 /
∫(x2+4x)+11dx=C+⎩⎨⎧−33acoth(33(x+2))−33atanh(33(x+2))for(x+2)2>3for(x+2)2<3
Gráfica
___ / ___\ ___ / ___\ ___ / ___\ ___ / ___\
\/ 3 *log\2 - \/ 3 / \/ 3 *log\3 + \/ 3 / \/ 3 *log\2 + \/ 3 / \/ 3 *log\3 - \/ 3 /
- -------------------- - -------------------- + -------------------- + --------------------
6 6 6 6
−63log(3+3)+63log(3−3)−63log(2−3)+63log(3+2)
=
___ / ___\ ___ / ___\ ___ / ___\ ___ / ___\
\/ 3 *log\2 - \/ 3 / \/ 3 *log\3 + \/ 3 / \/ 3 *log\2 + \/ 3 / \/ 3 *log\3 - \/ 3 /
- -------------------- - -------------------- + -------------------- + --------------------
6 6 6 6
−63log(3+3)+63log(3−3)−63log(2−3)+63log(3+2)
-sqrt(3)*log(2 - sqrt(3))/6 - sqrt(3)*log(3 + sqrt(3))/6 + sqrt(3)*log(2 + sqrt(3))/6 + sqrt(3)*log(3 - sqrt(3))/6
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.