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