364 NOTE sun UN memoim: etc. 



, dL dP , dL dP m" ,„ dP m' ,„ ^ ., . ,^, 



rff' de. e.ds dc' 4 (/e' 2 x vr ^^ y 



,dL dp , dL dP m" ,„rf/* m' „ ^, ,^, 



II suit de li que si Ton fait ; 



,dL dP ,dL dP , dL dP' , ,^ . 



— »»' — . -J m'— . w! — — . —■ =m'lN Sin. © , 



dy ay de de e.dxsde ' 



,dL dP , dL dp _^ . 



<fc de e'. do' t/e* ' ' 



Ton a. 



et 



,dL dP ,dL dP , dL dP , ,^ 



—m — . m — . -— -f-m' — — =m'lNtos. © , 



ay dy de de e.dti de 



,dL dP , dL dP , ,^ 



m -—. -— — m ———. -r :=mlKcos. o ; 

 ae' de? e . dvs rfe' 



7Z«/("e'siu.3srH- \- . ITM^'^e" sin. Ssr' 

 4 ■ 2 • 



^M("-». J ZM/C) jee". sin. (2S7'-+-5r) 

 2A'sin.y=r— / j I ZTMC''-!- 2- ^M(" jeV. sin. (asr-f-sr') 

 j J ^i»/W-t-^aa'i9WM(5'jey'sin.(3n-|-sr) 



2Xsm.9=- 



^ /r^<='-H^aa'iB'"Mwjeysin. (aH-l-w') ; 



^ Zr'y¥tVsin.3CT-j- ^ ^MWe"sin,3s7' 



z 4 



j ^iTit/W^-i ^A/(')jee"sin.(2a7'-»-sr) 

 j Z^'M«-t.|-Zr^(''L'e'sin.(2S7+w') 



