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