lc contineii. Si enim ponatur n ~ — i , ipfnni a vero ne- 

 galive capialui, feries noflrae erunt: 



GrArfin.a-(-arin.(a-(-(J^)-( a'fin.(a-+-2Cl:)-f- etc. 



H r B r cof. a -(- a cof. (a -^ Cj:) -r o' cof. (a -t- 2 (J:) -e clc. 

 fummae autcm cum fint 



G = --^fin.(a-c.), 



a lin. 



n =z — -J'^ Co[. (y. — (^) , 



a Jin- ^ V ^ ; » 



ob 



fin. ( a — 00 ) rr J""" " "■'' "-< " n^' . 



^ ' y i 1 — 2 a co/. (J> -t- o o ) ■ 



COf. f a Ui)~ "-f- " — 



a CJf^ ( a — J 1 



1 — 2 a c^. ^ -i- a a) ' 



crit, ul fupra loco citato invcnimus: 



Q -— /'»• a — <i/;n. (a — _$) __ y^ 



I — 2 co f. $ -f- <> o * 



II ~ c'/- g — o co/. ( 7 — J) I JJ 



I — 2 a co_, . :p -fl a a 



Corollarium 7. 

 $. 2^. Si denic)ue cjuoquc in fiimmationibn.9 c;cnera- 

 libus in poftremo Pioblcmate c.xhibitis a ncgative capia- 

 lur, nafceniur fecjuentcs feries: 



©rrfin.a-fJ]ann.(a-+-0)-Kf^Oa=fin.(a-4-2Cj))-ctc. 



Jprr cof. a-f p ]a cof.(a-f-C:)-f-f ^]n*cof. (a-+- aCP) - clc. 



quarum fummac iia cxpiimentur: 



rtt n* fin. ^" r / ■ \ 



= :t -7 ^fin. (a4-w wj, 



fin. oj/ 



<v 0"" fin. d)'' - , V 



•V = ± -7 1- cof. {a.~\-n w^) , 



fin. cj/ ^' 



ubi 



