30 DB REDJTUONE UNEARVM a'WAKVM 



I. I I-I-» »S __ l.l-5-t ' 7- g_ j. « V« 



4.« 4.«.S.| 4.4.S.» i:|5 •T ' 



Alitcr aiitem \-.il()r ipliiis r ex formulis in ipfi folutionc 

 problcm.uis iniicntis cxpreflus rcperictur , namque ob b~ 

 crit ; 



r - -^-H-- (cof r-Hcof. i -\- coC ^? -|- cof. ^ 



-+- -f- cof. *-^-^) 



Tndc fcqncntes formulac ad valorem r appropinqua- 



bunt : 



fi « zr 1 , r =1 • <7 



Jfin:=2; r — \a{i-{-i cof. t) 



fi « — 3 ; r — i <7( I -h 2 cof. ? -f- a cof. */ ) 



etc. 

 At vcro (eries illa cofuiiiiim exprcfTione fuiita exhibcn 

 potcft ; erit enim : 



coC :- -f- cof. ': -h cof. '; -1- . . . -h cof. ^-^»-^- - -[ 



cof <-^ - cof. e 



2(l-COf. J- ) 



lam ob f angulum rcdum , crit cof. ^ — o , ct cof. 

 "T^' ^ — cof. (f — ^ )zr fin. ^ : vnde pracccdcns fumma abit 



.(i-cof^) fin.;- -^^S,,, 



idcoque fumma fcriei 



cof.i-H-cof.V-l-cof;^-h...-f-cof:^'';''fz=:-;4-2tung..4 

 quo valore fubflituto fict 



r — 



