πL
{{{1-(2x)]} cosx sinx dx
{1-log (200gx)}cosxsin)は奇問数
なので
S. {1-los (2 cosx)] cosxsinxdx
=
cosx=tとおくと
- sinxdx = dt
11
11
sinxdx = -dt.
Nt N/W
*S
(1-log 2t) t.dt.
3
ELIX
+37
(Hog ²t) · (+/- +²)'d t
3
M|_
[+€ (1-1920)] + [ { \ = e^ de
11/11 11/13 ( 1 − log-√3) - 1—1/3 +
3
4
3
12/2/2 1073-
[[77]
+ 414
T
2
3
=
8
8 log √3
=
8
log √3
+ 1/3-16
21
768
