1 / | | 7*x - 1 | ------------- dx | 2 | x + 2*x + 37 | / 0
Integral((7*x - 1)/(x^2 + 2*x + 37), (x, 0, 1))
/ | | 7*x - 1 | ------------- dx | 2 | x + 2*x + 37 | /
2*x + 2 7*------------- /-8 \ 2 |---| 7*x - 1 x + 2*x + 37 \ 36/ ------------- = --------------- + -------------- 2 2 2 x + 2*x + 37 / x 1\ |- - - -| + 1 \ 6 6/
/ | | 7*x - 1 | ------------- dx | 2 = | x + 2*x + 37 | /
/ | | 1 / 2* | -------------- dx | | 2 | 2*x + 2 | / x 1\ 7* | ------------- dx | |- - - -| + 1 | 2 | \ 6 6/ | x + 2*x + 37 | | / / - ---------------------- + --------------------- 9 2
/ | | 2*x + 2 7* | ------------- dx | 2 | x + 2*x + 37 | / --------------------- 2
2 u = x + 2*x
/ | | 1 7* | ------ du | 37 + u | / 7*log(37 + u) -------------- = ------------- 2 2
/ | | 2*x + 2 7* | ------------- dx | 2 | x + 2*x + 37 | / 2 \ / 7*log\37 + x + 2*x/ --------------------- = -------------------- 2 2
/ | | 1 -2* | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 6 6/ | / ----------------------- 9
1 x v = - - - - 6 6
/ | | 1 -2* | ------ dv | 2 | 1 + v | / -2*atan(v) --------------- = ---------- 9 9
/ | | 1 -2* | -------------- dx | 2 | / x 1\ | |- - - -| + 1 | \ 6 6/ /1 x\ | -4*atan|- + -| / \6 6/ ----------------------- = -------------- 9 3
/1 x\ 4*atan|- + -| / 2 \ \6 6/ 7*log\37 + x + 2*x/ C - ------------- + -------------------- 3 2
/ /1 x\ | 4*atan|- + -| / 2 \ | 7*x - 1 \6 6/ 7*log\37 + x + 2*x/ | ------------- dx = C - ------------- + -------------------- | 2 3 2 | x + 2*x + 37 | /
7*log(37) 4*atan(1/3) 4*atan(1/6) 7*log(40) - --------- - ----------- + ----------- + --------- 2 3 3 2
=
7*log(37) 4*atan(1/3) 4*atan(1/6) 7*log(40) - --------- - ----------- + ----------- + --------- 2 3 3 2
-7*log(37)/2 - 4*atan(1/3)/3 + 4*atan(1/6)/3 + 7*log(40)/2
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.