1 / | | x + 5 | ------------ dx | 2 | x - 2*x + 4 | / 0
Integral((x + 5)/(x^2 - 2*x + 4), (x, 0, 1))
/ | | x + 5 | ------------ dx | 2 | x - 2*x + 4 | /
/ 2*x - 2 \ |------------| /6\ | 2 | |-| x + 5 \x - 2*x + 4/ \3/ ------------ = -------------- + ------------------------ 2 2 2 x - 2*x + 4 / ___ ___\ |-\/ 3 \/ 3 | |-------*x + -----| + 1 \ 3 3 /
/ | | x + 5 | ------------ dx | 2 = | x - 2*x + 4 | /
/ | | 2*x - 2 | ------------ dx | 2 | x - 2*x + 4 / | | / | 1 ------------------ + 2* | ------------------------ dx 2 | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 | \ 3 3 / | /
/ | | 2*x - 2 | ------------ dx | 2 | x - 2*x + 4 | / ------------------ 2
2 u = x - 2*x
/ | | 1 | ----- du | 4 + u | / log(4 + u) ----------- = ---------- 2 2
/ | | 2*x - 2 | ------------ dx | 2 | x - 2*x + 4 | / 2 \ / log\4 + x - 2*x/ ------------------ = ----------------- 2 2
/ | | 1 2* | ------------------------ dx | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 | \ 3 3 / | /
___ ___ \/ 3 x*\/ 3 v = ----- - ------- 3 3
/ | | 1 2* | ------ dv = 2*atan(v) | 2 | 1 + v | /
/ | / ___ ___\ | 1 ___ | \/ 3 x*\/ 3 | 2* | ------------------------ dx = 2*\/ 3 *atan|- ----- + -------| | 2 \ 3 3 / | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 | \ 3 3 / | /
/ 2 \ / ___ ___\ log\4 + x - 2*x/ ___ | \/ 3 x*\/ 3 | C + ----------------- + 2*\/ 3 *atan|- ----- + -------| 2 \ 3 3 /
/ | / 2 \ / ___ \ | x + 5 log\4 + x - 2*x/ ___ |\/ 3 *(-1 + x)| | ------------ dx = C + ----------------- + 2*\/ 3 *atan|--------------| | 2 2 \ 3 / | x - 2*x + 4 | /
___ log(3) log(4) pi*\/ 3 ------ - ------ + -------- 2 2 3
=
___ log(3) log(4) pi*\/ 3 ------ - ------ + -------- 2 2 3
log(3)/2 - log(4)/2 + pi*sqrt(3)/3
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.