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