1 / | | 3*x - 1 | ------------ dx | 2 | x - 3*x + 4 | / 0
Integral((3*x - 1)/(x^2 - 3*x + 4), (x, 0, 1))
/ | | 3*x - 1 | ------------ dx | 2 | x - 3*x + 4 | /
2*x - 3 3*------------ / 7 \ 2 |-----| 3*x - 1 x - 3*x + 4 \2*7/4/ ------------ = -------------- + --------------------------- 2 2 2 x - 3*x + 4 / ___ ___\ |-2*\/ 7 3*\/ 7 | |--------*x + -------| + 1 \ 7 7 /
/ | | 3*x - 1 | ------------ dx | 2 = | x - 3*x + 4 | /
/ | | 2*x - 3 3* | ------------ dx | 2 / | x - 3*x + 4 | | | 1 / 2* | --------------------------- dx + -------------------- | 2 2 | / ___ ___\ | |-2*\/ 7 3*\/ 7 | | |--------*x + -------| + 1 | \ 7 7 / | /
/ | | 2*x - 3 3* | ------------ dx | 2 | x - 3*x + 4 | / -------------------- 2
2 u = x - 3*x
/ | | 1 3* | ----- du | 4 + u | / 3*log(4 + u) ------------- = ------------ 2 2
/ | | 2*x - 3 3* | ------------ dx | 2 | x - 3*x + 4 | / 2 \ / 3*log\4 + x - 3*x/ -------------------- = ------------------- 2 2
/ | | 1 2* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 7 3*\/ 7 | | |--------*x + -------| + 1 | \ 7 7 / | /
___ ___ 3*\/ 7 2*x*\/ 7 v = ------- - --------- 7 7
/ | | 1 2* | ------ dv = 2*atan(v) | 2 | 1 + v | /
/ | / ___ ___\ | 1 ___ | 3*\/ 7 2*x*\/ 7 | 2* | --------------------------- dx = \/ 7 *atan|- ------- + ---------| | 2 \ 7 7 / | / ___ ___\ | |-2*\/ 7 3*\/ 7 | | |--------*x + -------| + 1 | \ 7 7 / | /
/ 2 \ / ___ ___\ 3*log\4 + x - 3*x/ ___ | 3*\/ 7 2*x*\/ 7 | C + ------------------- + \/ 7 *atan|- ------- + ---------| 2 \ 7 7 /
/ | / 2 \ / ___ \ | 3*x - 1 3*log\4 + x - 3*x/ ___ |2*\/ 7 *(-3/2 + x)| | ------------ dx = C + ------------------- + \/ 7 *atan|------------------| | 2 2 \ 7 / | x - 3*x + 4 | /
/ ___\ / ___\ 3*log(4) 3*log(2) ___ |3*\/ 7 | ___ |\/ 7 | - -------- + -------- + \/ 7 *atan|-------| - \/ 7 *atan|-----| 2 2 \ 7 / \ 7 /
=
/ ___\ / ___\ 3*log(4) 3*log(2) ___ |3*\/ 7 | ___ |\/ 7 | - -------- + -------- + \/ 7 *atan|-------| - \/ 7 *atan|-----| 2 2 \ 7 / \ 7 /
-3*log(4)/2 + 3*log(2)/2 + sqrt(7)*atan(3*sqrt(7)/7) - sqrt(7)*atan(sqrt(7)/7)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.