1 / | | 2 - 7*x | ------------- dx | 2 | x - 4*x + 13 | / 0
Integral((2 - 7*x)/(x^2 - 4*x + 13), (x, 0, 1))
/ | | 2 - 7*x | ------------- dx | 2 | x - 4*x + 13 | /
2*x - 4 7*------------- /-12 \ 2 |----| 2 - 7*x x - 4*x + 13 \ 9 / ------------- = - --------------- + -------------- 2 2 2 x - 4*x + 13 / x 2\ |- - + -| + 1 \ 3 3/
/ | | 2 - 7*x | ------------- dx | 2 = | x - 4*x + 13 | /
/ | / | 1 | 4* | -------------- dx | 2*x - 4 | 2 7* | ------------- dx | / x 2\ | 2 | |- - + -| + 1 | x - 4*x + 13 | \ 3 3/ | | / / - --------------------- - ---------------------- 2 3
/ | | 2*x - 4 -7* | ------------- dx | 2 | x - 4*x + 13 | / ---------------------- 2
2 u = x - 4*x
/ | | 1 -7* | ------ du | 13 + u | / -7*log(13 + u) --------------- = -------------- 2 2
/ | | 2*x - 4 -7* | ------------- dx | 2 | x - 4*x + 13 | / 2 \ / -7*log\13 + x - 4*x/ ---------------------- = --------------------- 2 2
/ | | 1 -4* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ | / ----------------------- 3
2 x v = - - - 3 3
/ | | 1 -4* | ------ dv | 2 | 1 + v | / -4*atan(v) --------------- = ---------- 3 3
/ | | 1 -4* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ | / / 2 x\ ----------------------- = -4*atan|- - + -| 3 \ 3 3/
/ 2 \ / 2 x\ 7*log\13 + x - 4*x/ C - 4*atan|- - + -| - -------------------- \ 3 3/ 2
/ | / 2 \ | 2 - 7*x / 2 x\ 7*log\13 + x - 4*x/ | ------------- dx = C - 4*atan|- - + -| - -------------------- | 2 \ 3 3/ 2 | x - 4*x + 13 | /
7*log(10) 7*log(13) -4*atan(2/3) + 4*atan(1/3) - --------- + --------- 2 2
=
7*log(10) 7*log(13) -4*atan(2/3) + 4*atan(1/3) - --------- + --------- 2 2
-4*atan(2/3) + 4*atan(1/3) - 7*log(10)/2 + 7*log(13)/2
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.