nitur, fiint hi reCjuentes: 



d zV {i -i- fn z z); d zV [J — m z z)] 



^ dzV {iri z z— i) :, pofito « ~ o ; 



-r,— r— -! ; -7— ^■'' r; t^ — ^'' ri pofito /«=0. 



Si prima harum formularum conferatur cum illis , quas <*- 

 contemplati furnus, ridebimus efle fzri, ideoque fiet 



V ' / V"' ( > +C3Ji<P ) * 



■•= v7n • rE^T^ ' P°^^^° 



^ = v-^-^;^ = v^-Tang.'Cl). 



Sccunda h?irum formularum nimij;um dzV[i—mzz), 

 cxpeditur ope formulac III. ,§. 21. vbi e — ^, tuiii enim 

 fiet: 



eVni:zV{n-\-m) = Vm ct \-jy^-^, 



quare crit 



dzV (i-mzz)= -, xrf$i;+<-co/.(^)-' — ^ 



= ^ ^ Cj). cof (P' =^±^d<p. cof (p^ , pofito 



^ — 7^-6^ — -7- "«• CP — ITST • 

 Deinde formula «?2V(«/S2— i) reducitur ad cafus no- 

 ilros IV. et VIII. §. 14. pofito e=i, eritque 



, y, _ ,_ ^/Qfin.Cp' 



a K (Wisz iJ — y^(,^cof.Cp)'y 2(i+cof.4)) 

 __ </ 0. Cn. ! (P^ 

 ~ !^V m. cof. i Cp^ ' 

 quod omnino ritc fe habet, pofito z — ^^^^r^. 



§. 29. Vlterius procedendo, pro cafibus vbi ?n 



,, i" — 7- reducitur ad Cafus 



V( 1 •+- n»z) 



M 2 no- 



ilatuitur — , differentiale ,, i" — r- reducitur ad Cafiis 



