1 / | | x + 2 | ------------ dx | 2 | x + 4*x + 5 | / 0
Integral((x + 2)/(x^2 + 4*x + 5), (x, 0, 1))
/ | | x + 2 | ------------ dx | 2 | x + 4*x + 5 | /
/ 2*x + 4 \ |------------| /0\ | 2 | |-| x + 2 \x + 4*x + 5/ \1/ ------------ = -------------- + ------------- 2 2 2 x + 4*x + 5 (-x - 2) + 1
/ | | x + 2 | ------------ dx | 2 = | x + 4*x + 5 | /
/ | | 2*x + 4 | ------------ dx | 2 | x + 4*x + 5 | / ------------------ 2
/ | | 2*x + 4 | ------------ dx | 2 | x + 4*x + 5 | / ------------------ 2
2 u = x + 4*x
/ | | 1 | ----- du | 5 + u | / log(5 + u) ----------- = ---------- 2 2
/ | | 2*x + 4 | ------------ dx | 2 | x + 4*x + 5 | / 2 \ / log\5 + x + 4*x/ ------------------ = ----------------- 2 2
0
v = -2 - x
True
True
/ 2 \ log\5 + x + 4*x/ C + ----------------- 2
/ | / 2 \ | x + 2 log\x + 4*x + 5/ | ------------ dx = C + ----------------- | 2 2 | x + 4*x + 5 | /
log(10) log(5) ------- - ------ 2 2
=
log(10) log(5) ------- - ------ 2 2
log(10)/2 - log(5)/2
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.