1 / | | 3 | ------- dx | 2 | 27 + x | / 0
Integral(3/(27 + x^2), (x, 0, 1))
/ | | 3 | ------- dx | 2 | 27 + x | /
/3 \ |--| 3 \27/ ------- = ---------------- 2 2 27 + x / ___ \ |-\/ 3 | |-------*x| + 1 \ 9 /
/ | | 3 | ------- dx | 2 = | 27 + x | /
/ | | 1 | ---------------- dx | 2 | / ___ \ | |-\/ 3 | | |-------*x| + 1 | \ 9 / | / ---------------------- 9
/ | | 1 | ---------------- dx | 2 | / ___ \ | |-\/ 3 | | |-------*x| + 1 | \ 9 / | / ---------------------- 9
___ -x*\/ 3 v = --------- 9
/ | | 1 | ------ dv | 2 | 1 + v | / atan(v) ------------ = ------- 9 9
/ | | 1 | ---------------- dx | 2 | / ___ \ | |-\/ 3 | | |-------*x| + 1 / ___\ | \ 9 / ___ |x*\/ 3 | | \/ 3 *atan|-------| / \ 9 / ---------------------- = ------------------- 9 3
/ ___\ ___ |x*\/ 3 | \/ 3 *atan|-------| \ 9 / C + ------------------- 3
/ ___\ / ___ |x*\/ 3 | | \/ 3 *atan|-------| | 3 \ 9 / | ------- dx = C + ------------------- | 2 3 | 27 + x | /
/ ___\ ___ |\/ 3 | \/ 3 *atan|-----| \ 9 / ----------------- 3
=
/ ___\ ___ |\/ 3 | \/ 3 *atan|-----| \ 9 / ----------------- 3
sqrt(3)*atan(sqrt(3)/9)/3
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.