QJAWMDAM SERIERrm. X03 



Cnm igitur haec feries congruere debeat cum ante inuen- 

 ra , ex confenfu fingiilarum harum ferierum lumma re- 

 perientur. 



'-^ ■ '-'- . '—' . '-* . etc, ■- ■^"' 



- — I — aa 



(,—„){ _,^) ^ (.— g^X. — 7»! , (r— .^) i— *) , _o6 



. f- a^ 1- a« ""r- etC. — -^^j 

 (i— a)[,— g^X 7J) , f,— a^f— ^ ^)(i— T>) ^a'o 



; ' t— u+ ■ ~r- <-iw. — ; . ' 



1- ^5 }_ etc. — 71171 



§. 24. Hae feries in fcquentes formas transfiindi 

 poflunt , ex quibus Jex progrefTionis clarius perlpicietur : 



5^ iz: H-^-H^.-f-^-l-^* -H etc. 



^,-{1 -i)-4-«(i-lO -^U^-i^)+Ui-uHU^~u)-h etc. 



fc -(l-c)(l-5')-+-^(^-a4'-5»)-l-i«(l-^)(l-^) -f- etC, 

 ^ -(l-^)(l-iO(l-a'^-i-s(l-a')(l-^(l-a*) -+" ttC. 



",l.=(i-i)(i-iO(i-^^Xi«*)-^-aCi-ai-aO(i-a-)(i-i.j4-etc. 



etc. 



« 



a* 

 a 



fl» 

 



Vnde coUigitur fbre generaliter 



^TTI-M 



^m-+-._j ,_^^^, 



~(i-«)(^0....(i-^)-}-^(i ^0(^ aO----(i--.^ 4- 



U^ i»)(i aO---. (i-,7i^:r)-fKi-a4i^s)....(i-^+,)+etc. 



§. 25. Summa huius feriei etiam. hoc modo inuefti- 

 gari poted. Sit brcuitatis- gratia ^ — ^, atque ponatur 

 fumma quaefua : 



