1 / | | x | ------------- dx | 2 | x - 6*x + 13 | / 0
Integral(x/(x^2 - 6*x + 13), (x, 0, 1))
/ | | x | ------------- dx | 2 | x - 6*x + 13 | /
/ 2*x - 6 \ |-------------| /3\ | 2 | |-| x \x - 6*x + 13/ \4/ ------------- = --------------- + -------------- 2 2 2 x - 6*x + 13 / x 3\ |- - + -| + 1 \ 2 2/
/ | | x | ------------- dx | 2 = | x - 6*x + 13 | /
/ | / | 1 | 3* | -------------- dx | 2*x - 6 | 2 | ------------- dx | / x 3\ | 2 | |- - + -| + 1 | x - 6*x + 13 | \ 2 2/ | | / / ------------------- + ---------------------- 2 4
/ | | 2*x - 6 | ------------- dx | 2 | x - 6*x + 13 | / ------------------- 2
2 u = x - 6*x
/ | | 1 | ------ du | 13 + u | / log(13 + u) ------------ = ----------- 2 2
/ | | 2*x - 6 | ------------- dx | 2 | x - 6*x + 13 | / 2 \ / log\13 + x - 6*x/ ------------------- = ------------------ 2 2
/ | | 1 3* | -------------- dx | 2 | / x 3\ | |- - + -| + 1 | \ 2 2/ | / ---------------------- 4
3 x v = - - - 2 2
/ | | 1 3* | ------ dv | 2 | 1 + v | / 3*atan(v) -------------- = --------- 4 4
/ | | 1 3* | -------------- dx | 2 | / x 3\ | |- - + -| + 1 | \ 2 2/ / 3 x\ | 3*atan|- - + -| / \ 2 2/ ---------------------- = --------------- 4 2
/ 3 x\ / 2 \ 3*atan|- - + -| log\13 + x - 6*x/ \ 2 2/ C + ------------------ + --------------- 2 2
/ / 3 x\ | / 2 \ 3*atan|- - + -| | x log\13 + x - 6*x/ \ 2 2/ | ------------- dx = C + ------------------ + --------------- | 2 2 2 | x - 6*x + 13 | /
log(8) 3*pi log(13) 3*atan(3/2) ------ - ---- - ------- + ----------- 2 8 2 2
=
log(8) 3*pi log(13) 3*atan(3/2) ------ - ---- - ------- + ----------- 2 8 2 2
log(8)/2 - 3*pi/8 - log(13)/2 + 3*atan(3/2)/2
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.