1 / | | 2*x + 3 | ------------ dx | 2 | x + 3*x + 7 | / 0
Integral((2*x + 3)/(x^2 + 3*x + 7), (x, 0, 1))
/ | | 2*x + 3 | ------------ dx | 2 | x + 3*x + 7 | /
/ 0 \ |----| 2*x + 3 2*x + 3 \19/4/ ------------ = ------------ + ----------------------------- 2 2 2 x + 3*x + 7 x + 3*x + 7 / ____ ____\ |-2*\/ 19 3*\/ 19 | |---------*x - --------| + 1 \ 19 19 /
/ | | 2*x + 3 | ------------ dx | 2 = | x + 3*x + 7 | /
/ | | 2*x + 3 | ------------ dx | 2 | x + 3*x + 7 | /
/ | | 2*x + 3 | ------------ dx | 2 | x + 3*x + 7 | /
2 u = x + 3*x
/ | | 1 | ----- du = log(7 + u) | 7 + u | /
/ | | 2*x + 3 / 2 \ | ------------ dx = log\7 + x + 3*x/ | 2 | x + 3*x + 7 | /
0
____ ____ 3*\/ 19 2*x*\/ 19 v = - -------- - ---------- 19 19
True
True
/ 2 \ C + log\7 + x + 3*x/
/ | | 2*x + 3 / 2 \ | ------------ dx = C + log\x + 3*x + 7/ | 2 | x + 3*x + 7 | /
-log(7) + log(11)
=
-log(7) + log(11)
-log(7) + log(11)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.