1 / | | 3*x - 2 | -------------- dx | 2 | 2 - 3*x + 5*x | / 0
Integral((3*x - 2)/(2 - 3*x + 5*x^2), (x, 0, 1))
/ | | 3*x - 2 | -------------- dx | 2 | 2 - 3*x + 5*x | /
/ -11 \ 5*2*x - 3 |-----| 3*-------------- | 31| 2 |10*--| 3*x - 2 5*x - 3*x + 2 \ 20/ -------------- = ---------------- + ------------------------------ 2 10 2 2 - 3*x + 5*x / ____ ____\ |-10*\/ 31 3*\/ 31 | |----------*x + --------| + 1 \ 31 31 /
/ | | 3*x - 2 | -------------- dx | 2 = | 2 - 3*x + 5*x | /
/ | | 1 22* | ------------------------------ dx / | 2 | | / ____ ____\ | 5*2*x - 3 | |-10*\/ 31 3*\/ 31 | 3* | -------------- dx | |----------*x + --------| + 1 | 2 | \ 31 31 / | 5*x - 3*x + 2 | | / / - --------------------------------------- + ---------------------- 31 10
/ | | 5*2*x - 3 3* | -------------- dx | 2 | 5*x - 3*x + 2 | / ---------------------- 10
2 u = -3*x + 5*x
/ | | 1 3* | ----- du | 2 + u | / 3*log(2 + u) ------------- = ------------ 10 10
/ | | 5*2*x - 3 3* | -------------- dx | 2 | 5*x - 3*x + 2 | / 2\ / 3*log\2 - 3*x + 5*x / ---------------------- = --------------------- 10 10
/ | | 1 -22* | ------------------------------ dx | 2 | / ____ ____\ | |-10*\/ 31 3*\/ 31 | | |----------*x + --------| + 1 | \ 31 31 / | / ---------------------------------------- 31
____ ____ 3*\/ 31 10*x*\/ 31 v = -------- - ----------- 31 31
/ | | 1 -22* | ------ dv | 2 | 1 + v | / -22*atan(v) ---------------- = ----------- 31 31
/ | | 1 -22* | ------------------------------ dx | 2 | / ____ ____\ | |-10*\/ 31 3*\/ 31 | | |----------*x + --------| + 1 / ____ ____\ | \ 31 31 / ____ | 3*\/ 31 10*x*\/ 31 | | -11*\/ 31 *atan|- -------- + -----------| / \ 31 31 / ---------------------------------------- = ----------------------------------------- 31 155
/ ____ ____\ /2 2 3*x\ ____ | 3*\/ 31 10*x*\/ 31 | 3*log|- + x - ---| 11*\/ 31 *atan|- -------- + -----------| \5 5 / \ 31 31 / C + ------------------- - ---------------------------------------- 10 155
/ ____ \ / ____ |10*\/ 31 *(-3/10 + x)| | / 2\ 11*\/ 31 *atan|---------------------| | 3*x - 2 3*log\2 - 3*x + 5*x / \ 31 / | -------------- dx = C + --------------------- - ------------------------------------- | 2 10 155 | 2 - 3*x + 5*x | /
/ ____\ / ____\ ____ |3*\/ 31 | ____ |7*\/ 31 | 11*\/ 31 *atan|--------| 11*\/ 31 *atan|--------| 3*log(2/5) 3*log(4/5) \ 31 / \ 31 / - ---------- + ---------- - ------------------------ - ------------------------ 10 10 155 155
=
/ ____\ / ____\ ____ |3*\/ 31 | ____ |7*\/ 31 | 11*\/ 31 *atan|--------| 11*\/ 31 *atan|--------| 3*log(2/5) 3*log(4/5) \ 31 / \ 31 / - ---------- + ---------- - ------------------------ - ------------------------ 10 10 155 155
-3*log(2/5)/10 + 3*log(4/5)/10 - 11*sqrt(31)*atan(3*sqrt(31)/31)/155 - 11*sqrt(31)*atan(7*sqrt(31)/31)/155
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.