1 / | | 2*x + 3 | ------------- dx | 2 | x - 4*x + 13 | / 0
Integral((2*x + 3)/(x^2 - 4*x + 13), (x, 0, 1))
/ | | 2*x + 3 | ------------- dx | 2 | x - 4*x + 13 | /
/7\ |-| 2*x + 3 2*x - 4 \9/ ------------- = ------------- + -------------- 2 2 2 x - 4*x + 13 x - 4*x + 13 / x 2\ |- - + -| + 1 \ 3 3/
/ | | 2*x + 3 | ------------- dx | 2 = | x - 4*x + 13 | /
/ | | 1 7* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ / | | / | 2*x - 4 ---------------------- + | ------------- dx 9 | 2 | x - 4*x + 13 | /
/ | | 2*x - 4 | ------------- dx | 2 | x - 4*x + 13 | /
2 u = x - 4*x
/ | | 1 | ------ du = log(13 + u) | 13 + u | /
/ | | 2*x - 4 / 2 \ | ------------- dx = log\13 + x - 4*x/ | 2 | x - 4*x + 13 | /
/ | | 1 7* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ | / ---------------------- 9
2 x v = - - - 3 3
/ | | 1 7* | ------ dv | 2 | 1 + v | / 7*atan(v) -------------- = --------- 9 9
/ | | 1 7* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ / 2 x\ | 7*atan|- - + -| / \ 3 3/ ---------------------- = --------------- 9 3
/ 2 x\ 7*atan|- - + -| \ 3 3/ / 2 \ C + --------------- + log\13 + x - 4*x/ 3
/ / 2 x\ | 7*atan|- - + -| | 2*x + 3 \ 3 3/ / 2 \ | ------------- dx = C + --------------- + log\13 + x - 4*x/ | 2 3 | x - 4*x + 13 | /
7*atan(1/3) 7*atan(2/3) -log(13) - ----------- + ----------- + log(10) 3 3
=
7*atan(1/3) 7*atan(2/3) -log(13) - ----------- + ----------- + log(10) 3 3
-log(13) - 7*atan(1/3)/3 + 7*atan(2/3)/3 + log(10)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.