oo / | | 3 - 5*x | ------------- dx | 2 | x + 6*x + 10 | / -oo
Integral((3 - 5*x)/(x^2 + 6*x + 10), (x, -oo, oo))
/ | | 3 - 5*x | ------------- dx | 2 | x + 6*x + 10 | /
2*x + 6 5*------------- /18\ 2 |--| 3 - 5*x x + 6*x + 10 \1 / ------------- = - --------------- + ------------- 2 2 2 x + 6*x + 10 (-x - 3) + 1
/ | | 3 - 5*x | ------------- dx | 2 = | x + 6*x + 10 | /
/ | | 2*x + 6 5* | ------------- dx | 2 / | x + 6*x + 10 | | | 1 / 18* | ------------- dx - --------------------- | 2 2 | (-x - 3) + 1 | /
/ | | 2*x + 6 -5* | ------------- dx | 2 | x + 6*x + 10 | / ---------------------- 2
2 u = x + 6*x
/ | | 1 -5* | ------ du | 10 + u | / -5*log(10 + u) --------------- = -------------- 2 2
/ | | 2*x + 6 -5* | ------------- dx | 2 | x + 6*x + 10 | / 2 \ / -5*log\10 + x + 6*x/ ---------------------- = --------------------- 2 2
/ | | 1 18* | ------------- dx | 2 | (-x - 3) + 1 | /
v = -3 - x
/ | | 1 18* | ------ dv = 18*atan(v) | 2 | 1 + v | /
/ | | 1 18* | ------------- dx = 18*atan(3 + x) | 2 | (-x - 3) + 1 | /
/ 2 \ 5*log\10 + x + 6*x/ C + 18*atan(3 + x) - -------------------- 2
/ | / 2 \ | 3 - 5*x 5*log\10 + x + 6*x/ | ------------- dx = C + 18*atan(3 + x) - -------------------- | 2 2 | x + 6*x + 10 | /
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.