1 / | | 5*x - 4 | ------------- dx | 2 | x - 4*x + 13 | / 0
/ | | 5*x - 4 | 1*------------- dx | 2 | x - 4*x + 13 | /
1*2*x - 4 5*--------------- /6\ 2 |-| 5*x - 4 1*x - 4*x + 13 \9/ ------------- = ----------------- + -------------- 2 2 2 x - 4*x + 13 / x 2\ |- - + -| + 1 \ 3 3/
/ | | 5*x - 4 | 1*------------- dx | 2 = | x - 4*x + 13 | /
/ | | 1 / 2* | -------------- dx | | 2 | 1*2*x - 4 | / x 2\ 5* | --------------- dx | |- - + -| + 1 | 2 | \ 3 3/ | 1*x - 4*x + 13 | | / / ---------------------- + ----------------------- 3 2
/ | | 1*2*x - 4 5* | --------------- dx | 2 | 1*x - 4*x + 13 | / ----------------------- 2
2 u = x - 4*x
/ | | 1 5* | ------ du | 13 + u | / 5*log(13 + u) -------------- = ------------- 2 2
/ | | 1*2*x - 4 5* | --------------- dx | 2 | 1*x - 4*x + 13 | / 2 \ / 5*log\13 + x - 4*x/ ----------------------- = -------------------- 2 2
/ | | 1 2* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ | / ---------------------- 3
2 x v = - - - 3 3
/ | | 1 2* | ------ dv | 2 | 1 + v | / 2*atan(v) -------------- = --------- 3 3
/ | | 1 2* | -------------- dx | 2 | / x 2\ | |- - + -| + 1 | \ 3 3/ | / / 2 x\ ---------------------- = 2*atan|- - + -| 3 \ 3 3/
/ 2 \ / 2 x\ 5*log\13 + x - 4*x/ C + 2*atan|- - + -| + -------------------- \ 3 3/ 2
/ | / 2 \ | 5*x - 4 / 2 x\ 5*log\13 + x - 4*x/ | ------------- dx = C + 2*atan|- - + -| + -------------------- | 2 \ 3 3/ 2 | x - 4*x + 13 | /
5*log(13) 5*log(10) -2*atan(1/3) + 2*atan(2/3) - --------- + --------- 2 2
=
5*log(13) 5*log(10) -2*atan(1/3) + 2*atan(2/3) - --------- + --------- 2 2
Данные примеры также можно применять при вводе верхнего и нижнего предела интегрирования.