___ \/ 3 / | | ___ | \/ 3 | ----------- dx | / 2\ | pi*\9 + x / | / 0
Integral(sqrt(3)/((pi*(9 + x^2))), (x, 0, sqrt(3)))
/ | | ___ | \/ 3 | ----------- dx | / 2\ | pi*\9 + x / | /
// ___\\ ||\/ 3 || ||-----|| |\ pi /| ___ |-------| \/ 3 \ 9 / ----------- = ---------- / 2\ 2 pi*\9 + x / /-x \ |---| + 1 \ 3 /
/ | | ___ | \/ 3 | ----------- dx = | / 2\ | pi*\9 + x / | /
/ | ___ | 1 \/ 3 * | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / | / ---------------------- 9*pi
/ | ___ | 1 \/ 3 * | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / | / ---------------------- 9*pi
-x v = --- 3
/ | ___ | 1 \/ 3 * | ------ dv | 2 | 1 + v | ___ / \/ 3 *atan(v) ------------------ = ------------- 9*pi 9*pi
/ | ___ | 1 \/ 3 * | ---------- dx | 2 | /-x \ | |---| + 1 | \ 3 / ___ /x\ | \/ 3 *atan|-| / \3/ ---------------------- = ------------- 9*pi 3*pi
___ /x\ \/ 3 *atan|-| \3/ C + ------------- 3*pi
/ | ___ /x\ | ___ \/ 3 *atan|-| | \/ 3 \3/ | ----------- dx = C + ------------- | / 2\ 3*pi | pi*\9 + x / | /
___ \/ 3 ----- 18
=
___ \/ 3 ----- 18
sqrt(3)/18
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.