oo / | | x | -------- dx | 2 | 1 + 4*x | / 0
Integral(x/(1 + 4*x^2), (x, 0, oo))
/ | | x | -------- dx | 2 | 1 + 4*x | /
/ 4*2*x \ |--------------| /0\ | 2 | |-| x \4*x + 0*x + 1/ \1/ -------- = ---------------- + ----------- 2 8 2 1 + 4*x (-2*x) + 1
/ | | x | -------- dx | 2 = | 1 + 4*x | /
/ | | 4*2*x | -------------- dx | 2 | 4*x + 0*x + 1 | / -------------------- 8
/ | | 4*2*x | -------------- dx | 2 | 4*x + 0*x + 1 | / -------------------- 8
2 u = 4*x
/ | | 1 | ----- du | 1 + u | / log(1 + u) ----------- = ---------- 8 8
/ | | 4*2*x | -------------- dx | 2 | 4*x + 0*x + 1 | / 2\ / log\1 + 4*x / -------------------- = ------------- 8 8
0
v = -2*x
True
True
/ 2\ log\1 + 4*x / C + ------------- 8
/ | / 2\ | x log\1 + 4*x / | -------- dx = C + ------------- | 2 8 | 1 + 4*x | /
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.