s34 
dF 
F (a, b) -4- ix — Cos Ax -f- a* — — 
v ’ ‘ da da z 
d Z F Cos 2AX 
1 . 2 
-f* etc. 
„dF „d 2 F Cos(X-t-u)x 
4-/3 — Cos ux nr 2»l 3 —— 4“ etc. 
db dadb 1 . 2 
„ d z F Cos 2 ux 
4 “ ß 2 -rrr 4 " etc. 
db ■ 
1 . 2 
4 - etc. 
dF d z F Sin 2 Ax 
cc — Sin Ax -J- a 2 — 4- 
da 
da'- 
1 . 2 
. dF _ 
/3 — Sin 2 c&fà 
db 
d z F Sin (A-i-//) X 
dadb 
1 . 2 
ß : 
d 2 .F Sin 2 fx X 
db 2 i . 2 
etc. 
+ etc. 
Hh etc. 
-f* etc. 
quarum expressionum si prior multiplicetur per 
2 dx # 2xdx 
, posterior autem per 
A 2 4 -x 2 1 1 A 2 4 -x 2 
atque sumantur integralia intra limites x =: o et x = ce , fiet 
ob formulas has cognitas 
2 Cos mx .dx 
h z -4» x 2, 
2 X Sin mx . */x 
A 2 4-x 2 
57 
I 
57 
-tmA 
f 
-ni A 
e 
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