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