1 / | | x | ------- dx | 2 | cos (x) | / 0
/ / 2/x\\ / /x\\ / /x\\ 2/x\ / /x\\ 2/x\ / /x\\ 2/x\ / 2/x\\ /x\ | log|1 + tan |-|| log|1 + tan|-|| log|-1 + tan|-|| tan |-|*log|1 + tan|-|| tan |-|*log|-1 + tan|-|| tan |-|*log|1 + tan |-|| 2*x*tan|-| | x \ \2// \ \2// \ \2// \2/ \ \2// \2/ \ \2// \2/ \ \2// \2/ | ------- dx = C + ---------------- - --------------- - ---------------- + ----------------------- + ------------------------ - ------------------------ - ------------ | 2 2/x\ 2/x\ 2/x\ 2/x\ 2/x\ 2/x\ 2/x\ | cos (x) -1 + tan |-| -1 + tan |-| -1 + tan |-| -1 + tan |-| -1 + tan |-| -1 + tan |-| -1 + tan |-| | \2/ \2/ \2/ \2/ \2/ \2/ \2/ /
/ 2 \ 2 2 2 / 2 \ log\1 + tan (1/2)/ pi*I + log(1 - tan(1/2)) log(1 + tan(1/2)) 2*tan(1/2) tan (1/2)*(pi*I + log(1 - tan(1/2))) tan (1/2)*log(1 + tan(1/2)) tan (1/2)*log\1 + tan (1/2)/ ------------------ - pi*I - ------------------------ - ----------------- - -------------- + ------------------------------------ + --------------------------- - ---------------------------- 2 2 2 2 2 2 2 -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2)
=
/ 2 \ 2 2 2 / 2 \ log\1 + tan (1/2)/ pi*I + log(1 - tan(1/2)) log(1 + tan(1/2)) 2*tan(1/2) tan (1/2)*(pi*I + log(1 - tan(1/2))) tan (1/2)*log(1 + tan(1/2)) tan (1/2)*log\1 + tan (1/2)/ ------------------ - pi*I - ------------------------ - ----------------- - -------------- + ------------------------------------ + --------------------------- - ---------------------------- 2 2 2 2 2 2 2 -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2) -1 + tan (1/2)
Данные примеры также можно применять при вводе верхнего и нижнего предела интегрирования.