1 / | | -x - 4 | ------------ dx | 2 | x - 2*x + 4 | / 0
Integral((-x - 4)/(x^2 - 2*x + 4), (x, 0, 1))
/ | | -x - 4 | ------------ dx | 2 | x - 2*x + 4 | /
/ 2*x - 2 \ |------------| /-5 \ | 2 | |---| -x - 4 \x - 2*x + 4/ \ 3 / ------------ = - -------------- + ------------------------ 2 2 2 x - 2*x + 4 / ___ ___\ |-\/ 3 \/ 3 | |-------*x + -----| + 1 \ 3 3 /
/ | | -x - 4 | ------------ dx | 2 = | x - 2*x + 4 | /
/ | | 1 5* | ------------------------ dx / | 2 | | / ___ ___\ | 2*x - 2 | |-\/ 3 \/ 3 | | ------------ dx | |-------*x + -----| + 1 | 2 | \ 3 3 / | x - 2*x + 4 | | / / - -------------------------------- - ------------------ 3 2
/ | | 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 -5* | ------------------------ dx | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 | \ 3 3 / | / --------------------------------- 3
___ ___ \/ 3 x*\/ 3 v = ----- - ------- 3 3
/ | | 1 -5* | ------ dv | 2 | 1 + v | / -5*atan(v) --------------- = ---------- 3 3
/ | | 1 -5* | ------------------------ dx | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 / ___ ___\ | \ 3 3 / ___ | \/ 3 x*\/ 3 | | -5*\/ 3 *atan|- ----- + -------| / \ 3 3 / --------------------------------- = -------------------------------- 3 3
/ ___ ___\ ___ | \/ 3 x*\/ 3 | / 2 \ 5*\/ 3 *atan|- ----- + -------| log\4 + x - 2*x/ \ 3 3 / C - ----------------- - ------------------------------- 2 3
/ ___ \ / ___ |\/ 3 *(1 - x)| | / 2 \ 5*\/ 3 *atan|-------------| | -x - 4 log\4 + x - 2*x/ \ 3 / | ------------ dx = C - ----------------- + --------------------------- | 2 2 3 | x - 2*x + 4 | /
___ log(4) log(3) 5*pi*\/ 3 ------ - ------ - ---------- 2 2 18
=
___ log(4) log(3) 5*pi*\/ 3 ------ - ------ - ---------- 2 2 18
log(4)/2 - log(3)/2 - 5*pi*sqrt(3)/18
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.