1 / | | 3 | -------- dx | 2 | 9*x + 7 | / 0
Integral(3/(9*x^2 + 7), (x, 0, 1))
/ | | 3 | -------- dx | 2 | 9*x + 7 | /
/3\ |-| 3 \7/ -------- = ----------------- 2 2 9*x + 7 / ___ \ |-3*\/ 7 | |--------*x| + 1 \ 7 /
/ | | 3 | -------- dx | 2 = | 9*x + 7 | /
/ | | 1 3* | ----------------- dx | 2 | / ___ \ | |-3*\/ 7 | | |--------*x| + 1 | \ 7 / | / ------------------------- 7
/ | | 1 3* | ----------------- dx | 2 | / ___ \ | |-3*\/ 7 | | |--------*x| + 1 | \ 7 / | / ------------------------- 7
___ -3*x*\/ 7 v = ---------- 7
/ | | 1 3* | ------ dv | 2 | 1 + v | / 3*atan(v) -------------- = --------- 7 7
/ | | 1 3* | ----------------- dx | 2 | / ___ \ | |-3*\/ 7 | | |--------*x| + 1 / ___\ | \ 7 / ___ |3*x*\/ 7 | | \/ 7 *atan|---------| / \ 7 / ------------------------- = --------------------- 7 7
/ ___\ ___ |3*x*\/ 7 | \/ 7 *atan|---------| \ 7 / C + --------------------- 7
/ ___\ / ___ |3*x*\/ 7 | | \/ 7 *atan|---------| | 3 \ 7 / | -------- dx = C + --------------------- | 2 7 | 9*x + 7 | /
/ ___\ ___ |3*\/ 7 | \/ 7 *atan|-------| \ 7 / ------------------- 7
=
/ ___\ ___ |3*\/ 7 | \/ 7 *atan|-------| \ 7 / ------------------- 7
sqrt(7)*atan(3*sqrt(7)/7)/7
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.