— 204 — 
LogaJ' 
O 
Log 2 J 
Är(Cos mx)*^ SinmrA: dx ir i-f-e 
- 2 tnh 
A’ + *= 
Log 2--^^ Log 2 
(Cos mx)' Cos mrx dx it 
— = ifc(-r-) 
-[- x^ 
on conclura 
/ 
ä:(Cos mx^ Sin mrx Log (Sin mrx) dx 
-zmh ( nmrh 
n \+e Z) AT / -2mrk^ - 
:-(—_) |(-—-)Log(.-e )-Log 
4 — ^-( 1 - 
Loga) 
/ 
** ar(Cos Sin mrx Log (Cos mrx) </3f 
-amh ( unirh 
P 4 -x=* 
amrÄ 
~ß \-r f -imrh. 
■)Log(i+e ) 
_Log2| + ^^(-*+Log2)l- 
’ ° ( 15 ) 
/ 
(Cos mx'{ Cos mrx Log (Sin mrx) dx 
2mrh 
, -am/i , , 
= ri:C— 7 — )1C — :: — ) 
/ 
09 
a/i ^ 2 
(Cos tnxf Cos mrx Log (Cos mrx) dx 
— Log 2 1 
h^-{-x 
~imh 
n i-|“e 
a/i ^ 2 
. amrA 
±i-)Log(i+e‘^"‘’-") 
— Log aj. 
De CCS formules on aura de plus sans difficulté les suiyautes 
