SERIES SINGVLARE3. x5.3 



Ordo tcrtiiiy , quo m -•- « — 4. 



13. Diio cnlus hic (init confidcrandi , quoriim 

 primus c(t w — 3, et n—i^ \ndc forma /'—.ji^ 

 — f-^ in hanc re(bliutur : 



H^/kr (j) - 'fb 'fk^+n (>)+l/^ C>:+/k7(i) 



ita vt fic 



^/"f (^)^/'^ (y^) vi (^)==/kr •/;'+/^ -A-/^- 



Ex prima aiitem methudo habetur 

 /^(r)+/r(>) = ^kr-/r-{-/^ . 



quae a.qualitas ab illa ablata rclinquit 



Altero cafu eft /« zi 2 et « — 2 , vndo colligitur 

 f'i^'fk^ ~/b 



" ^=^^^./^-/iT(p)-=/^(^) 

 + ^/?-/b~/b^)-^/j^(7) 



U cquc prrro 



^/-^y + 4/i.(^) = 3/^./^+/^. 

 At niethodus priia dat 



^fb^rd^fb-f^-^r^ 



\nde concludimus fore 



/^(p) = ^/b-/^+i/^ 



"/^(r)==^yb-/b- 



Supirior vero conclufio fuppcdirat 



Tom.XX.rNou.Comm. V quae 



