5 / | | 2*x + 6 | ------- dx | 2 | x + 36 | / 0
Integral((2*x + 6)/(x^2 + 36), (x, 0, 5))
/ | | 2*x + 6 | ------- dx | 2 | x + 36 | /
/6 \ |--| 2*x + 6 2*x \36/ ------- = ------------- + ---------- 2 2 2 x + 36 x + 0*x + 36 /-x \ |---| + 1 \ 6 /
/ | | 2*x + 6 | ------- dx | 2 = | x + 36 | /
/ | | 1 | ---------- dx | 2 | /-x \ | |---| + 1 | \ 6 / / | | / | 2*x ---------------- + | ------------- dx 6 | 2 | x + 0*x + 36 | /
/ | | 2*x | ------------- dx | 2 | x + 0*x + 36 | /
2 u = x
/ | | 1 | ------ du = log(36 + u) | 36 + u | /
/ | | 2*x / 2\ | ------------- dx = log\36 + x / | 2 | x + 0*x + 36 | /
/ | | 1 | ---------- dx | 2 | /-x \ | |---| + 1 | \ 6 / | / ---------------- 6
-x v = --- 6
/ | | 1 | ------ dv | 2 | 1 + v | / atan(v) ------------ = ------- 6 6
/ | | 1 | ---------- dx | 2 | /-x \ | |---| + 1 | \ 6 / | / /x\ ---------------- = atan|-| 6 \6/
/x\ / 2\ C + atan|-| + log\36 + x / \6/
/ | | 2*x + 6 /x\ / 2\ | ------- dx = C + atan|-| + log\36 + x / | 2 \6/ | x + 36 | /
-log(36) + atan(5/6) + log(61)
=
-log(36) + atan(5/6) + log(61)
-log(36) + atan(5/6) + log(61)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.