1 / | | 1 | -------- dx | 2 | 3*x + 7 | / 0
Integral(1/(3*x^2 + 7), (x, 0, 1))
/ | | 1 | -------- dx | 2 | 3*x + 7 | /
1 1 -------- = --------------------- 2 / 2 \ 3*x + 7 |/ ____ \ | ||-\/ 21 | | 7*||--------*x| + 1| \\ 7 / /
/ | | 1 | -------- dx | 2 = | 3*x + 7 | /
/ | | 1 | ----------------- dx | 2 | / ____ \ | |-\/ 21 | | |--------*x| + 1 | \ 7 / | / ----------------------- 7
/ | | 1 | ----------------- dx | 2 | / ____ \ | |-\/ 21 | | |--------*x| + 1 | \ 7 / | / ----------------------- 7
____ -x*\/ 21 v = ---------- 7
/ | | 1 | ------ dv | 2 | 1 + v | / atan(v) ------------ = ------- 7 7
/ | | 1 | ----------------- dx | 2 | / ____ \ | |-\/ 21 | | |--------*x| + 1 / ____\ | \ 7 / ____ |x*\/ 21 | | \/ 21 *atan|--------| / \ 7 / ----------------------- = --------------------- 7 21
/ ____\ ____ |x*\/ 21 | \/ 21 *atan|--------| \ 7 / C + --------------------- 21
/ ____\ / ____ |x*\/ 21 | | \/ 21 *atan|--------| | 1 \ 7 / | -------- dx = C + --------------------- | 2 21 | 3*x + 7 | /
/ ____\ ____ |\/ 21 | \/ 21 *atan|------| \ 7 / ------------------- 21
=
/ ____\ ____ |\/ 21 | \/ 21 *atan|------| \ 7 / ------------------- 21
sqrt(21)*atan(sqrt(21)/7)/21
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.