1 / | | 4*x + 3 | ------- dx | 2 | x + 9 | / 0
Integral((4*x + 3)/(x^2 + 9), (x, 0, 1))
/ | | 4*x + 3 | ------- dx | 2 | x + 9 | /
/3\ |-| 4*x + 3 2*x \9/ ------- = 2*------------ + ---------- 2 2 2 x + 9 x + 0*x + 9 /-x \ |---| + 1 \ 3 /
/ | | 4*x + 3 | ------- dx | 2 = | x + 9 | /
/ | | 1 | ---------- dx | 2 | /-x \ | |---| + 1 / | \ 3 / | | | 2*x / 2* | ------------ dx + ---------------- | 2 3 | x + 0*x + 9 | /
/ | | 2*x 2* | ------------ dx | 2 | x + 0*x + 9 | /
2 u = x
/ | | 1 2* | ----- du = 2*log(9 + u) | 9 + u | /
/ | | 2*x / 2\ 2* | ------------ dx = 2*log\9 + x / | 2 | x + 0*x + 9 | /
/ | | 1 | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / | / ---------------- 3
-x v = --- 3
/ | | 1 | ------ dv | 2 | 1 + v | / atan(v) ------------ = ------- 3 3
/ | | 1 | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / | / /x\ ---------------- = atan|-| 3 \3/
/ 2\ /x\ C + 2*log\9 + x / + atan|-| \3/
/ | | 4*x + 3 / 2\ /x\ | ------- dx = C + 2*log\9 + x / + atan|-| | 2 \3/ | x + 9 | /
-2*log(9) + 2*log(10) + atan(1/3)
=
-2*log(9) + 2*log(10) + atan(1/3)
-2*log(9) + 2*log(10) + atan(1/3)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.