VNICAM VARIABILEM INFOLVENTES. 25 



tcras fiicrit perucntum , tum binas ciuimodi prodituras cffe 

 aequationes. 



«^^"-'-(«-1 jB/)"-'-!- («-s^Cp^-^-^w-s )D/>""'-i- etc. 



-^(«-^^^''"-('^-^^/^'"^-{-(«-S)^/)''-*-^"-^)^/)"-'-!- etc.) 



et 

 («4- 1 )Ap"-wBp''-'-f-(/2-i)Cp''-=-(//-2)D/)"-^-j- etc, 

 — ^((«-Hi)/>"-//(l/>''"'-f-(//-i ^^/'''"'-(/i-^^C/)"-'-!- etc.) 

 — D^.wp^--^"-! )ap''"'H-(«-2)6/>''"'-(/z-3)C/>""*-H etc.) 

 Ponatur iam : 

 Ap''-Bp''-'^-Cp'^=-Dp''-^+ etc. =:M 



pn.,_^pn.2_^^pn-s_^pn.,_^ CtC. =r N 



^tque binae illae aequationes tranfibunt in Iws 



d-Mp ^d.Nf)^ Q^.N0 



fp dp dp 



ex quibus elicitur : 

 . — dH et 



■ Hdp-hpdH 



Atque cx harum comparationc oritiir 



rki NdM— MdN j_ , M 



'4> u^ip dp "• N 



ILi N -T- N=dp N"T~dp"-N 



Ponatur iam ^ zz: V vt fit 



_ ^^"-^^"--4-^^"-— Dp"-'-!- etc. 



~ p"-'-a/>"-'H-b/>""'-C/->""' -f- c^ 

 erit fi numerator ct dcnominator per ^^* diuidatur, prorius 

 \t ante nfllimfimus 



Toiih XIV. D V = 



