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