DE SVMMIS BIVISOKV m, 79 



\-nde colligetur: 



C — I— x'-x« ^,-cc«>-x'S(,— *«)(.--xS)— x'»U— x*U>— 5C«)(t— ^«)-ff- 



Ponatur Cz=. i ~ x —T> x'\ erit 



D— ,^_-**_t-x*(«—x*)(i—x5)H-x«(i— *♦)(<— «*){' — x«) -t-efc. 



qme abit in hanc formam : 



—X* _x»(i_x5) _x"(i~x5Xi— a«) — etC' 



, _j.x*(i_f.xS)-t-j;»(i— xSXi— x«)H-x'^(;— *5)(, — x«Xi— x^) -f-€tc. 



ficque crit 



D — ,-**-x'*(.-x5)-x'J'(,-xS)(,_s.«)-x»«(.-xS)(,-x«)(.-x') - etc 



Qiiodfi porro ponatur D :=: i — a* — Ex'*, reperietnr 



Cniili modo : 



E — I — x" — Fx" ; hincque \ltra : 



etc. 

 Reftituamns iam (uccefliue hos valores, eritque: 



J =: 1 — AT — A.v^ 

 Aji;' — X* (i - x") - Bx' 



b/=ia'(i -.v^j-a'* 



CAr'^=.t''\i-/)-D.v'* 



Da,-'*=:v''(i-a-VE-^''' 



etc, 

 Qiiamobrem h^ibebimus : 



»:= • -X - -^'(^ -x^) -+-x^(,-xS)_x'S(,-x»)_|-x»»[,-x9):-x«9(i-x") -H efc. 



fiue id ipfum , quod demonftrari oportet : 



f— i-x-x»4-x5-t_x7_x's_x'5_,_x52-4-x»<-x35_x*o_HxS'-»-efCi 



vnde fimul lex exponentium fupra indicata per differen- 

 tia» luculeute perlpicitur. 



PRO- 



