i^ - 3/)-29+/4-^cof.v)— A'+B'cor.ii4-C'cof.2vi+D'cor.3>ietc. 

 in qua fi loco q valor ante inuentus fubflituatur , liet 

 ^^ — 3 P4-/+ >^ cof.v) = AH B/cof.vj + C'cof.2>i + D'cof 3 v) +etc. 

 + 4/1 — 2 A + 2 /' (^— 23) cof. y\ — 5 i S cof zy\ — l /2) cof 3 •>]— etc. 

 flue ^ +p=2 A-/+ A'+ (2/ (^_«5)_;^+B') cof.^+(C'-^/(3:)cof. 2 vj 



+ (D'-ii2))cof 2>j + (E'-^i(5)cof a-yi+etc. 

 cuiiis loco brevitatis gratia fcribamus 



^g^f + p z: a' + ?8' cof vj H- €' cof. 2 Vj + S'cof 37] + etc. 



ita vt fit 



2(, — 2A-/+A'; 23'.— 2i(^-«6)-i + B'; r-C-zd: 

 2)'=::D'-|/©; (I-'ni £'—:/(£; etc. 



§. II. Manifedum autem eft, huic aequalioni fa- 

 tisfieri , ftatucndo 



p — a -I- (3 cof "vi -h y cof 2 vj -f- 5 cof. 3 "V] -f- etc. 

 vndc ob ^^! — i mcmbium finiftrum refoluitur in has dU' 



as feries : 



ddf p^cof.vj - -^'>' cof 2 vi-'-icof 3Tj-'4-« cof 4>)-ctc. 



+/)=ra + pcof ■vj + y cof ^-vj + ^cof 3 v] +ecof 4^)+ etc. 

 ita vt, fmgulis ambarum partium mcmbris feorfim aequatis, 

 fe prodeant fponte fcquentes determinationes: 



az=51'-, (3(1-/,)=^'; v(i-t) = (E'; ^(i -;^.) zS?'; etc. 

 ideoque 



II ^- tt *■ ti ^ ' it 



§. 12. Cum igitur ex valoribus htterariim A, B, 

 C, D, etc. fupra §. 6. inuentis facile colligi queant va- 



R r 2 lores 



