1 / | | x | ------------ dx | 2 | x - 2*x + 4 | / 0
/ | | x | 1*------------ dx | 2 | x - 2*x + 4 | /
/ 1*2*x - 2 \
|--------------|
| 2 |
x \1*x - 2*x + 4/ 1
------------ = ---------------- + ----------------------------
2 2 / 2 \
x - 2*x + 4 |/ ___ ___\ |
||-\/ 3 \/ 3 | |
3*||-------*x + -----| + 1|
\\ 3 3 / // | | x | 1*------------ dx | 2 = | x - 2*x + 4 | /
/
|
| 1
/ | ------------------------ dx
| | 2
| 1*2*x - 2 | / ___ ___\
| -------------- dx | |-\/ 3 \/ 3 |
| 2 | |-------*x + -----| + 1
| 1*x - 2*x + 4 | \ 3 3 /
| |
/ /
-------------------- + ------------------------------
2 3 /
|
| 1*2*x - 2
| -------------- dx
| 2
| 1*x - 2*x + 4
|
/
--------------------
2 2 u = x - 2*x
/
|
| 1
| ----- du
| 4 + u
|
/ log(4 + u)
----------- = ----------
2 2 /
|
| 1*2*x - 2
| -------------- dx
| 2
| 1*x - 2*x + 4
| / 2 \
/ log\4 + x - 2*x/
-------------------- = -----------------
2 2 /
|
| 1
| ------------------------ dx
| 2
| / ___ ___\
| |-\/ 3 \/ 3 |
| |-------*x + -----| + 1
| \ 3 3 /
|
/
------------------------------
3 ___ ___
\/ 3 x*\/ 3
v = ----- - -------
3 3 /
|
| 1
| ------ dv
| 2
| 1 + v
|
/ atan(v)
------------ = -------
3 3 /
|
| 1
| ------------------------ dx
| 2
| / ___ ___\
| |-\/ 3 \/ 3 |
| |-------*x + -----| + 1 / ___ ___\
| \ 3 3 / ___ | \/ 3 x*\/ 3 |
| \/ 3 *atan|- ----- + -------|
/ \ 3 3 /
------------------------------ = -----------------------------
3 3 / ___ ___\
___ | \/ 3 x*\/ 3 |
/ 2 \ \/ 3 *atan|- ----- + -------|
log\4 + x - 2*x/ \ 3 3 /
C + ----------------- + -----------------------------
2 3 / ___ \ / ___ |\/ 3 *(-1 + x)| | / 2 \ \/ 3 *atan|--------------| | x log\4 + x - 2*x/ \ 3 / | ------------ dx = C + ----------------- + -------------------------- | 2 2 3 | x - 2*x + 4 | /
___ log(3) log(4) pi*\/ 3 ------ - ------ + -------- 2 2 18
=
___ log(3) log(4) pi*\/ 3 ------ - ------ + -------- 2 2 18
Данные примеры также можно применять при вводе верхнего и нижнего предела интегрирования.