§. 50. Verum in hoc negotio formulis fiipra datis 

 penitus carere ponumus; cum enim fit fin.Cp^ — 5 — a cof. aCp, 

 erit primo pro partibus fecundis littera b affedis : 



/3 (p fin.Cp^cof. 6(^ — \j"d<^ cof. 60 (i — cof. 20) 



= i /9 Cp (cof. 6 — i cof. 8 — 5 cof. 4 0) , 

 culus integrale manifefto efl: 



:n A fin. 6 — 3. fin. 8 — 15 fin. 4 0. 

 Deinde ob 



fin. 0^- fin. 6 = 4 fin. 60 — ^ cof. 20 fin. 6 



= l fin. 6 — i fin. 8 — \ fin. 40 

 habebimus 



/ a X fin. 60 = — /, cof. 60 + 3', cof. 8 -h /5 cof. 4^) , 



quas formulas per litteram b multiplicari oportet. 



§. 51. Denique pro tertiis partibus littera c affedis 

 cum fit 



fin. 0^ — \ — \ cof. 2 0^-h \ cof. 4 , 

 erit 



fm. 0-* cof. 6 = I cof. 6 — I cof. 8 — I cof 4 

 H- i', cof. I o 4- ,'5 cof. 2 ,• 



vnde integrando nancifcimur : 



/3 fin. 0^ cof. 6 = /s fin. 6 — ^, fin. 8 



— j\ fin. 4 -h iJg fin. I o -h 53 fin. 2 0. 

 Deinde vero erit 



/a fin. 0* fin. 6 = I fin. 6 — i fin. 8 — ^ fin. 4 

 H- i'5 fin. I o -h i's fin. 2 , 

 ideoque integrando habebimus : 



/3 fin. 0^* fin. 6 = — ,', cof 6 -h g'^ cof. 8 



h cof. 4 — j^o cof. I o — p cof. 2 0. 



H 3 §.52. 



