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