1 / | | 1 | ------------ dx | 2 | x - 5*x + 7 | / 0
Integral(1/(x^2 - 5*x + 7), (x, 0, 1))
/ | | 1 | ------------ dx | 2 | x - 5*x + 7 | /
1 1 ------------ = --------------------------------- 2 / 2 \ x - 5*x + 7 |/ ___ ___\ | ||-2*\/ 3 5*\/ 3 | | 3/4*||--------*x + -------| + 1| \\ 3 3 / /
/ | | 1 | ------------ dx | 2 = | x - 5*x + 7 | /
/ | | 1 4* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 3 5*\/ 3 | | |--------*x + -------| + 1 | \ 3 3 / | / ----------------------------------- 3
/ | | 1 4* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 3 5*\/ 3 | | |--------*x + -------| + 1 | \ 3 3 / | / ----------------------------------- 3
___ ___ 5*\/ 3 2*x*\/ 3 v = ------- - --------- 3 3
/ | | 1 4* | ------ dv | 2 | 1 + v | / 4*atan(v) -------------- = --------- 3 3
/ | | 1 4* | --------------------------- dx | 2 | / ___ ___\ | |-2*\/ 3 5*\/ 3 | | |--------*x + -------| + 1 / ___ ___\ | \ 3 3 / ___ | 5*\/ 3 2*x*\/ 3 | | 2*\/ 3 *atan|- ------- + ---------| / \ 3 3 / ----------------------------------- = ----------------------------------- 3 3
/ ___ ___\ ___ | 5*\/ 3 2*x*\/ 3 | 2*\/ 3 *atan|- ------- + ---------| \ 3 3 / C + ----------------------------------- 3
/ ___ \ / ___ |2*\/ 3 *(-5/2 + x)| | 2*\/ 3 *atan|------------------| | 1 \ 3 / | ------------ dx = C + -------------------------------- | 2 3 | x - 5*x + 7 | /
/ ___\ ___ |5*\/ 3 | ___ 2*\/ 3 *atan|-------| 2*pi*\/ 3 \ 3 / - ---------- + --------------------- 9 3
=
/ ___\ ___ |5*\/ 3 | ___ 2*\/ 3 *atan|-------| 2*pi*\/ 3 \ 3 / - ---------- + --------------------- 9 3
-2*pi*sqrt(3)/9 + 2*sqrt(3)*atan(5*sqrt(3)/3)/3
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.