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