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