1 / | | x | ------------- dx | 2 | x + 6*x + 10 | / 0
Integral(x/(x^2 + 6*x + 10), (x, 0, 1))
/ | | x | ------------- dx | 2 | x + 6*x + 10 | /
/ 2*x + 6 \ |-------------| /-3 \ | 2 | |---| x \x + 6*x + 10/ \ 1 / ------------- = --------------- + ------------- 2 2 2 x + 6*x + 10 (-x - 3) + 1
/ | | x | ------------- dx | 2 = | x + 6*x + 10 | /
/ | | 2*x + 6 | ------------- dx | 2 | x + 6*x + 10 / | | / | 1 ------------------- - 3* | ------------- dx 2 | 2 | (-x - 3) + 1 | /
/ | | 2*x + 6 | ------------- dx | 2 | x + 6*x + 10 | / ------------------- 2
2 u = x + 6*x
/ | | 1 | ------ du | 10 + u | / log(10 + u) ------------ = ----------- 2 2
/ | | 2*x + 6 | ------------- dx | 2 | x + 6*x + 10 | / 2 \ / log\10 + x + 6*x/ ------------------- = ------------------ 2 2
/ | | 1 -3* | ------------- dx | 2 | (-x - 3) + 1 | /
v = -3 - x
/ | | 1 -3* | ------ dv = -3*atan(v) | 2 | 1 + v | /
/ | | 1 -3* | ------------- dx = -3*atan(3 + x) | 2 | (-x - 3) + 1 | /
/ 2 \ log\10 + x + 6*x/ C + ------------------ - 3*atan(3 + x) 2
/ | / 2 \ | x log\10 + x + 6*x/ | ------------- dx = C + ------------------ - 3*atan(3 + x) | 2 2 | x + 6*x + 10 | /
log(17) log(10) ------- - 3*atan(4) + 3*atan(3) - ------- 2 2
=
log(17) log(10) ------- - 3*atan(4) + 3*atan(3) - ------- 2 2
log(17)/2 - 3*atan(4) + 3*atan(3) - log(10)/2
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.