1 / | | 5 | ------------ dx | 2 | x + 2*x + 5 | / 0
Integral(5/(x^2 + 2*x + 5), (x, 0, 1))
/ | | 5 | ------------ dx | 2 | x + 2*x + 5 | /
/5\ |-| 5 \4/ ------------ = -------------- 2 2 x + 2*x + 5 / x 1\ |- - - -| + 1 \ 2 2/
/ | | 5 | ------------ dx | 2 = | x + 2*x + 5 | /
/ | | 1 5* | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 2 2/ | / ---------------------- 4
/ | | 1 5* | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 2 2/ | / ---------------------- 4
1 x v = - - - - 2 2
/ | | 1 5* | ------ dv | 2 | 1 + v | / 5*atan(v) -------------- = --------- 4 4
/ | | 1 5* | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 2 2/ /1 x\ | 5*atan|- + -| / \2 2/ ---------------------- = ------------- 4 2
/1 x\ 5*atan|- + -| \2 2/ C + ------------- 2
/ /1 x\ | 5*atan|- + -| | 5 \2 2/ | ------------ dx = C + ------------- | 2 2 | x + 2*x + 5 | /
5*atan(1/2) 5*pi - ----------- + ---- 2 8
=
5*atan(1/2) 5*pi - ----------- + ---- 2 8
-5*atan(1/2)/2 + 5*pi/8
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.