1 / | | 3*x - 2 | -------- dx | 2 | 3*x + 1 | / 0
Integral((3*x - 2)/(3*x^2 + 1), (x, 0, 1))
/ | | 3*x - 2 | -------- dx | 2 | 3*x + 1 | /
/ 3*2*x \ |--------------| /-2 \ | 2 | |---| 3*x - 2 \3*x + 0*x + 1/ \ 1 / -------- = ---------------- + --------------- 2 2 2 3*x + 1 / ___ \ \-\/ 3 *x/ + 1
/ | | 3*x - 2 | -------- dx | 2 = | 3*x + 1 | /
/ | | 3*2*x | -------------- dx | 2 | 3*x + 0*x + 1 / | | / | 1 -------------------- - 2* | --------------- dx 2 | 2 | / ___ \ | \-\/ 3 *x/ + 1 | /
/ | | 3*2*x | -------------- dx | 2 | 3*x + 0*x + 1 | / -------------------- 2
2 u = 3*x
/ | | 1 | ----- du | 1 + u | / log(1 + u) ----------- = ---------- 2 2
/ | | 3*2*x | -------------- dx | 2 | 3*x + 0*x + 1 | / 2\ / log\1 + 3*x / -------------------- = ------------- 2 2
/ | | 1 -2* | --------------- dx | 2 | / ___ \ | \-\/ 3 *x/ + 1 | /
___ v = -x*\/ 3
/ | | 1 -2* | ------ dv = -2*atan(v) | 2 | 1 + v | /
/ | ___ / ___\ | 1 -2*\/ 3 *atan\x*\/ 3 / -2* | --------------- dx = ---------------------- | 2 3 | / ___ \ | \-\/ 3 *x/ + 1 | /
/1 2\ log|- + x | ___ / ___\ \3 / 2*\/ 3 *atan\x*\/ 3 / C + ----------- - --------------------- 2 3
/ | / 2\ ___ / ___\ | 3*x - 2 log\3 + 9*x / 2*\/ 3 *atan\x*\/ 3 / | -------- dx = C + ------------- - --------------------- | 2 2 3 | 3*x + 1 | /
___ log(3) log(4/3) 2*pi*\/ 3 ------ + -------- - ---------- 2 2 9
=
___ log(3) log(4/3) 2*pi*\/ 3 ------ + -------- - ---------- 2 2 9
log(3)/2 + log(4/3)/2 - 2*pi*sqrt(3)/9
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.