277 
Hæ duæ formulae eædem sunt ac ( 0 ) et (5), quæ itaque ex 
fe) et W sponte quasi fluunt« 
§.16. 
Statuamus Jam exempli causa 
m n 
Ç (a, b , etc.) a • b t etc. 
Sequitur ex iis, quæ in paragrapho 5. colligi possunt, fore 
m + » -H etc. Kxm tcxw wA4- n^u -f- etc. 
Mss 2 (Cos — ) (Cos--—) .etc. Cost )x 
2 2 2 
I 
»i4“ w "f"etc. _ Axw /ux« fwA - 4 - w// + etc. 
N=z2 (Cos—) (Cos—) .etc. Sin ( )x 
2 » 2 
quibus substitutis , ex formulis (g) et (b) obtinebitur 
/. 
•7t , _ Ax»» _ /ux» _ »»A-f- Wjuetc. 
(Cos — ) (Cos—) . etc. Cos( ) x . dx 
2 2 2 
1 - 2r Cos x -t - r 2 
* (i±lV-(— )°.etc 
. . . (25) 
i - r z 2 
/ 
7 r Axw /wx » wjA - 4 - mu - 4- etc.. 
" (Cos — ) (Cos — ) . etc. Sin( )xSmx. dx 
22 2 
i - 2r Cos x 4- r 2 
A (x 
7 t 1 -4- r v m 1 + f n 
— ( ) .( ) . etc. — 
2r 2 2 
7T 
i+w-f-M-J-etc. 
. 2 
.(O) 
