2 / | | 12*x + 1 | ------------ dx | 2 | 6*x + x - 1 | / 1
Integral((12*x + 1)/(6*x^2 + x - 1), (x, 1, 2))
/ | | 12*x + 1 | ------------ dx | 2 | 6*x + x - 1 | /
12*x + 1 6*2*x + 1 ------------ = ------------ 2 2 6*x + x - 1 6*x + x - 1
/ | | 12*x + 1 | ------------ dx | 2 = | 6*x + x - 1 | /
/ | | 6*2*x + 1 | ------------ dx | 2 | 6*x + x - 1 | /
/ | | 6*2*x + 1 | ------------ dx | 2 | 6*x + x - 1 | /
2 u = x + 6*x
/ | | 1 | ------ du = log(-1 + u) | -1 + u | /
/ | | 6*2*x + 1 / 2\ | ------------ dx = log\-1 + x + 6*x / | 2 | 6*x + x - 1 | /
/ 2\ C + log\-1 + x + 6*x /
/ | | 12*x + 1 / 2 \ | ------------ dx = C + log\6*x + x - 1/ | 2 | 6*x + x - 1 | /
-log(6) + log(25)
=
-log(6) + log(25)
-log(6) + log(25)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.