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