1 / | | 2*x + 2 | ------------ dx | 2 | x - 3*x + 3 | / 0
Integral((2*x + 2)/(x^2 - 3*x + 3), (x, 0, 1))
/ | | 2*x + 2 | ------------ dx | 2 | x - 3*x + 3 | /
/ 5 \ |---| 2*x + 2 2*x - 3 \3/4/ ------------ = ------------ + ------------------------- 2 2 2 x - 3*x + 3 x - 3*x + 3 / ___ \ |-2*\/ 3 ___| |--------*x + \/ 3 | + 1 \ 3 /
/ | | 2*x + 2 | ------------ dx | 2 = | x - 3*x + 3 | /
/ | | 1 20* | ------------------------- dx | 2 | / ___ \ | |-2*\/ 3 ___| | |--------*x + \/ 3 | + 1 | \ 3 / / | | / | 2*x - 3 ---------------------------------- + | ------------ dx 3 | 2 | x - 3*x + 3 | /
/ | | 2*x - 3 | ------------ dx | 2 | x - 3*x + 3 | /
2 u = x - 3*x
/ | | 1 | ----- du = log(3 + u) | 3 + u | /
/ | | 2*x - 3 / 2 \ | ------------ dx = log\3 + x - 3*x/ | 2 | x - 3*x + 3 | /
/ | | 1 20* | ------------------------- dx | 2 | / ___ \ | |-2*\/ 3 ___| | |--------*x + \/ 3 | + 1 | \ 3 / | / ---------------------------------- 3
___ ___ 2*x*\/ 3 v = \/ 3 - --------- 3
/ | | 1 20* | ------ dv | 2 | 1 + v | / 20*atan(v) --------------- = ---------- 3 3
/ | | 1 20* | ------------------------- dx | 2 | / ___ \ | |-2*\/ 3 ___| | |--------*x + \/ 3 | + 1 / ___\ | \ 3 / ___ | ___ 2*x*\/ 3 | | 10*\/ 3 *atan|- \/ 3 + ---------| / \ 3 / ---------------------------------- = ---------------------------------- 3 3
/ ___\ ___ | ___ 2*x*\/ 3 | 10*\/ 3 *atan|- \/ 3 + ---------| \ 3 / / 2 \ C + ---------------------------------- + log\3 + x - 3*x/ 3
/ ___ \ / ___ |2*\/ 3 *(-3/2 + x)| | 10*\/ 3 *atan|------------------| | 2*x + 2 \ 3 / / 2 \ | ------------ dx = C + --------------------------------- + log\3 + x - 3*x/ | 2 3 | x - 3*x + 3 | /
___ 5*pi*\/ 3 -log(3) + ---------- 9
=
___ 5*pi*\/ 3 -log(3) + ---------- 9
-log(3) + 5*pi*sqrt(3)/9
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.