1 / | | 3*x | ------------- dx | 2 | x + 2*x + 10 | / 0
Integral((3*x)/(x^2 + 2*x + 10), (x, 0, 1))
/ | | 3*x | ------------- dx | 2 | x + 2*x + 10 | /
2*x + 2 3*------------- /-3 \ 2 |---| 3*x x + 2*x + 10 \ 9 / ------------- = --------------- + -------------- 2 2 2 x + 2*x + 10 / x 1\ |- - - -| + 1 \ 3 3/
/ | | 3*x | ------------- dx | 2 = | x + 2*x + 10 | /
/ | | 1 / | -------------- dx | | 2 | 2*x + 2 | / x 1\ 3* | ------------- dx | |- - - -| + 1 | 2 | \ 3 3/ | x + 2*x + 10 | | / / - -------------------- + --------------------- 3 2
/ | | 2*x + 2 3* | ------------- dx | 2 | x + 2*x + 10 | / --------------------- 2
2 u = x + 2*x
/ | | 1 3* | ------ du | 10 + u | / 3*log(10 + u) -------------- = ------------- 2 2
/ | | 2*x + 2 3* | ------------- dx | 2 | x + 2*x + 10 | / 2 \ / 3*log\10 + x + 2*x/ --------------------- = -------------------- 2 2
/ | | 1 - | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 3 3/ | / ---------------------- 3
1 x v = - - - - 3 3
/ | | 1 - | ------ dv | 2 | 1 + v | / -atan(v) -------------- = --------- 3 3
/ | | 1 - | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 3 3/ | / /1 x\ ---------------------- = -atan|- + -| 3 \3 3/
/ 2 \ /1 x\ 3*log\10 + x + 2*x/ C - atan|- + -| + -------------------- \3 3/ 2
/ | / 2 \ | 3*x /1 x\ 3*log\10 + x + 2*x/ | ------------- dx = C - atan|- + -| + -------------------- | 2 \3 3/ 2 | x + 2*x + 10 | /
3*log(10) 3*log(13) -atan(2/3) - --------- + --------- + atan(1/3) 2 2
=
3*log(10) 3*log(13) -atan(2/3) - --------- + --------- + atan(1/3) 2 2
-atan(2/3) - 3*log(10)/2 + 3*log(13)/2 + atan(1/3)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.