= (114) == 



prorfiis tnrbant. Intcrim tamen hoc incommodum tolli poterir, 

 fi quantitas v in numcratorem introducatnr. Ponamus igitur nu- 

 meratorem efTe A-y-t-B, ita \t A ct B fint quantitatcs realcs,- 

 ■vnde cum fit 



A 'y -I- B = A cof. co -4- B -I- / — i A fln. co , 

 partcs rcales et imaginariae feorfim acquentur, ficque efl^ debet 



A fin. w = — fin. (w — « "$} fi"* "? 

 Tnde fit A — — fin. (w — «<$)), <luo valore fubflituto partes 

 reales dabunt 



— cof. w fin. (oj — 72 (J)) -4- B — — fln. u cof. (w — « Cj)), 

 Tnde fit B r=r — fin. n Cf), ficque fradio noftra erit 



— vjin. ( ci — n $ 1 — /'"• " ^ 

 njin. n (fl 



§. 24. Nunc igitur tantum fupereft vt ifta formula mul- 

 trplicetur per R, eius fcilicet valorem, quem accipiet pofito- 



V q; — z v cof. ca -}- I = o- 

 Erat autcm 



R — -y" — ' [ cof. m Cj) 4- v'' cof (/;; — n)(p]^ 

 quod poilto T — cof. (i^-hV — i fin. u abit in 



cof, w (p cof. (m — iy^-+- cof. (w — «) (p cof. (w-f-;z — i) u 



H- >'— I [cof. ;;2Cp fm. (;;/— i) u-h cof. (;;;-«) Cpfm.(/;i-hK—i) wj, 

 cuius loco, vt imaginaria cxtirpemus, feribamus 



C c -I- D, fiue C cof. co -I:- D 4- ]/ — I C fin. co, 

 Tndc erit 



/■ • eoj. n (^Jin . [n — i )'s> -+■ cn'. (m — n^i^ Jin. [m -t-n — i ] iO) 



Jm. w ~ 



tt hinc 



T-\ coj fTi $/■??!. (2 — T?i ) co -t- cof. ' m Ti ) f;n. ( i — tti — n ) ca ' ^ 



Jin.-UK 



