oo / | | 3*x + 5 | ------- dx | 2 | x + 9 | / -oo
Integral((3*x + 5)/(x^2 + 9), (x, -oo, oo))
/ | | 3*x + 5 | ------- dx | 2 | x + 9 | /
2*x 3*------------ /5\ 2 |-| 3*x + 5 x + 0*x + 9 \9/ ------- = -------------- + ---------- 2 2 2 x + 9 /-x \ |---| + 1 \ 3 /
/ | | 3*x + 5 | ------- dx | 2 = | x + 9 | /
/ | / | 1 | 5* | ---------- dx | 2*x | 2 3* | ------------ dx | /-x \ | 2 | |---| + 1 | x + 0*x + 9 | \ 3 / | | / / -------------------- + ------------------ 2 9
/ | | 2*x 3* | ------------ dx | 2 | x + 0*x + 9 | / -------------------- 2
2 u = x
/ | | 1 3* | ----- du | 9 + u | / 3*log(9 + u) ------------- = ------------ 2 2
/ | | 2*x 3* | ------------ dx | 2 | x + 0*x + 9 | / 2\ / 3*log\9 + x / -------------------- = ------------- 2 2
/ | | 1 5* | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / | / ------------------ 9
-x v = --- 3
/ | | 1 5* | ------ dv | 2 | 1 + v | / 5*atan(v) -------------- = --------- 9 9
/ | | 1 5* | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / /x\ | 5*atan|-| / \3/ ------------------ = --------- 9 3
/x\ / 2\ 5*atan|-| 3*log\9 + x / \3/ C + ------------- + --------- 2 3
/ /x\ | / 2\ 5*atan|-| | 3*x + 5 3*log\9 + x / \3/ | ------- dx = C + ------------- + --------- | 2 2 3 | x + 9 | /
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.