Opuscuia. 243 
yCc , ^Cp itSL 
y dCc*^ d c^Cc»q(i}—D y .Cc, qd^) eorum valores 
— //cpCc^ (^, — y d c^Sc , ^ quod demceps femperprae» 
ftabo , & reperio 
(^S c. ^qj + f C c. 5^ <p — Djf . S c . ^ \ Sifecundam 
r ? multiplica- 
~— ( — fSc.f(p4-^ Cc.f(lp=::Dj>.Cc.^^ ^ tam per ^ de- 
trahas a^prima duda in g; deinde fecundam dudlam in g 
addas primac du^tae in f , invenies duas 
• (^^+ f ^ . S c. q<^—i Dy, S c .qap — qJ^y • C c. f cj? 
y d (h •' — = 
— - .(^^+^f .Cc.^^lj^g^Djf.Sc.f cjj+^Dj.Cc.f (|) 
Utramque multiplico per r, divido per + f ^ ,& integro 
SydcfSc,qcp = jj;^—yAgSc.q<^-qCc,q^p^^ q. e« 
iS>//cf)Cc.f Sc.^qj+^Cc.f 
Si ponas q eiTe quantitatem evanefcentem , habebfs 
Cc.^(f) — ^(jpjGc.^^— r: ergo in fequentes duae formu'" 
lac mutabuntur 
« , »• ^ ) Divifa prima per f,& 
^ 79 9 ^■^J' • T f ^ omiffis terminis , ubi a- 
« >• f z^, ) deft f f evanefcens , in 
^~ gg + q'q~'^ ) fequentes mutabuntUE 
aquaticnes 
c J — (^^ r r ) 
^—y* \ ^ gg) quae coincidunt cum illis , quaein- 
Sryd(^^—y > ^^"^^ ^""^ ""^- 
IV. Tranfeo ad finus & cofinus hyperbohcos, & eadem me» 
thodo alTequor integrationem duarum formularumjy ^9 Sh. q^p^ 
y dcsi.Qh . qop , Duarum quantitatum j».Sh.^(p,jf. Ch.^9 
differentiam capio 
g 
