zi6 



terius / j(i + 3//) = 2|/i- Ut fit j/ 2 ( * -+- 3//) ~ * 2* 

 hrnc fft 



_/(u 5 - i) 

 r = — - — t * , et 



K 3 



I 7 3 

 Sumendis vero logarithmis et differentiando prodit 



3 / < . z z d.z 



y & % s — i 

 fubititutis his valoribus habebitur 



9yi/c (1-4-3//) $£*£^% 



/( I-f /)-' (4 2 1 — t )[ j/ ^ -4- t / ( 4 z 3 - j )] 2 



Rlultiplicetur iam formula modo inventa in 



obtincbitur 



3 6 Z 1 ? Z r2 r 7-(i-+'2.') 



(■»* 1 -*)[/3-->'(.z 3 -i J] 2 ~ rf^=T)(7- 56 ) 2 



2(1— fcjVfta' - * ) 

 Vbi cum primum membrum fit ra4onale , intcgrale illius 

 eft in poteltate; pro altero vero membio integrai.do pona- 

 tur z^i — 3 v -+- 3 v v, unde fit: 



I — z 1 ~ 3 v (1 — l>) 



1/(4 z 3 — 1 ) — ( 1 — 2v)Y 3 



nec non 



j z 9 z = — D^(i — "2 1»), 



fada 



