1 / | | 1 | --------------- dx | 2 | 3*x - 6*x + 12 | / 0
Integral(1/(3*x^2 - 6*x + 12), (x, 0, 1))
/ | | 1 | --------------- dx | 2 | 3*x - 6*x + 12 | /
1 1 --------------- = ---------------------------- 2 / 2 \ 3*x - 6*x + 12 |/ ___ ___\ | ||-\/ 3 \/ 3 | | 9*||-------*x + -----| + 1| \\ 3 3 / /
/ | | 1 | --------------- dx | 2 = | 3*x - 6*x + 12 | /
/ | | 1 | ------------------------ dx | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 | \ 3 3 / | / ------------------------------ 9
/ | | 1 | ------------------------ dx | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 | \ 3 3 / | / ------------------------------ 9
___ ___ \/ 3 x*\/ 3 v = ----- - ------- 3 3
/ | | 1 | ------ dv | 2 | 1 + v | / atan(v) ------------ = ------- 9 9
/ | | 1 | ------------------------ dx | 2 | / ___ ___\ | |-\/ 3 \/ 3 | | |-------*x + -----| + 1 / ___ ___\ | \ 3 3 / ___ | \/ 3 x*\/ 3 | | \/ 3 *atan|- ----- + -------| / \ 3 3 / ------------------------------ = ----------------------------- 9 9
/ ___ ___\ ___ | \/ 3 x*\/ 3 | \/ 3 *atan|- ----- + -------| \ 3 3 / C + ----------------------------- 9
/ ___ \ / ___ |\/ 3 *(-1 + x)| | \/ 3 *atan|--------------| | 1 \ 3 / | --------------- dx = C + -------------------------- | 2 9 | 3*x - 6*x + 12 | /
___ pi*\/ 3 -------- 54
=
___ pi*\/ 3 -------- 54
pi*sqrt(3)/54
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.