40 
§. 26. 
Quod si jam ponatur x = /t.z, quo adeo fiet 
1 — 2 
Ç ZZ ç(o) . 
14-2 5 
a <2> zu — . dz , 
V (1+2)- ’ 
j , (1 + e ■<?(<>)) + (1 - ;-<?(o))s 
r r *¥' — i + s 
1 + / 1 — g.fl(o) \ 
\ ! +_«• ^>(o) / 5 
1 “I - *2» 
d(p 
2 <£(o) . c?2 
+ 5<? (i + Z )(i + ^))(. - - f - g . 2 ) 
— F (1 -j" s @(° ) ) Sin Ô • à (p 
1 4* f ^ 
2? . <p(o) . Sin Ô . dz 
C 1 + z ) (1 + y 
(! 4- *)*.(! + f< p) 2 = 
e . <p(o) 
4“ s • £(°) 
’l+s.(£(o)' 
1+2 
2 
4 e.(£(o) 
+ (*> + 4 (IUI« h - 
l 1 Vl + s.0(o)/ (l + s.<p(o))- 
+ 2 ( (r+7T^) *’ + (T+fsr) 4 1 
Kï 
} 
2 ' 
— s . <£(o) 
4- £ . (p(p ) 
