4 / | | 1 | ------------- dx | 2 | x - 5*x + 13 | / -2
Integral(1/(x^2 - 5*x + 13), (x, -2, 4))
/ | | 1 | ------------- dx | 2 | x - 5*x + 13 | /
1 1 ------------- = ---------------------------------- 2 / 2 \ x - 5*x + 13 |/ ___ ___\ | ||-2*\/ 3 5*\/ 3 | | 27/4*||--------*x + -------| + 1| \\ 9 9 / /
/ | | 1 | ------------- dx | 2 = | x - 5*x + 13 | /
/ | | 1 4* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 3 5*\/ 3 | | |--------*x + -------| + 1 | \ 9 9 / | / ----------------------------------- 27
/ | | 1 4* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 3 5*\/ 3 | | |--------*x + -------| + 1 | \ 9 9 / | / ----------------------------------- 27
___ ___ 5*\/ 3 2*x*\/ 3 v = ------- - --------- 9 9
/ | | 1 4* | ------ dv | 2 | 1 + v | / 4*atan(v) -------------- = --------- 27 27
/ | | 1 4* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 3 5*\/ 3 | | |--------*x + -------| + 1 / ___ ___\ | \ 9 9 / ___ | 5*\/ 3 2*x*\/ 3 | | 2*\/ 3 *atan|- ------- + ---------| / \ 9 9 / ----------------------------------- = ----------------------------------- 27 9
/ ___ ___\ ___ | 5*\/ 3 2*x*\/ 3 | 2*\/ 3 *atan|- ------- + ---------| \ 9 9 / C + ----------------------------------- 9
/ ___ \ / ___ |2*\/ 3 *(-5/2 + x)| | 2*\/ 3 *atan|------------------| | 1 \ 9 / | ------------- dx = C + -------------------------------- | 2 9 | x - 5*x + 13 | /
___ pi*\/ 3 -------- 9
=
___ pi*\/ 3 -------- 9
pi*sqrt(3)/9
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.