2SS OpusculA. 
Habemus quatuor determinandas , & tres aequationes; ergo 
una pro libito determinari poteft . Fiat itaque A = — ~r : erit 
ex nona ^ " = — ^ y , & ex o6lava A--\r . & ex decima 
5 12 ' 48 _ 
= Quapropter fummatoria qusefita proveniet 
~ ry(D,{ — — Sh.i^ Sh,q?.Ch. (fc-h S h . 9 . G h . 9 
~~ S h . (b.ChT^^ + C h .9"^ 
— rSidcD,{ Sh.O) — Sh.O) Ch.®4-S h.^.Ch.q? 
Sh,9.Ch.q?+-— Ch.qa ) -r^(p^ , 
g T 12 ^ 10 
Si in eifdem pofitionibus quaEreretur integratio formu- 
2 — : — ™ — >2 
Ix y(s^ , Sh.cp .Ch$> , quinque \ix xquationes prodi- 
rent i.^ iA--{-A-~ 2 B = Oy 1,^ ^ A-^ 2 A-h 2 A'-i- — Oy 
3 A-^ 2 A'-^ i A''=z ^ , 4.' 2 A'-h 2 4- 4 A'' — 4 S - 0 , 
5/ ^"'H- 2 A'''-h 2 B — o . Quinta duda in 2 dematjjra quarta, 
& fit 6.^ 2 — 8 5 = 0. Prima duda in 2 dematuf a fecunda, 
& fit 7.^ 2 ^'"h- 8 5 = 0. Quac duse sequationes fexta , & feptima 
ds,niB — o^A~o: ergo tres prima , tertia , & quinta fienc 
8.* 2^ + ^^=z 0, 9-* 3 A-\- sA'' = r, 10.^ A'+ 2 A'''~o, Pona- 
tur A — ^r^ erit ex nona ' r j ergo ex cdava , & decima 
I I 
^= r , ^''''= — — r. Quare fummatoria erit 
12 ' 12 ^ 
j I 4 3 3 I 4 
^rj>9 (— - Sh.cp + Sh.9 Ch.a)-fSh.(|?. Ch.9~-Ch.(i) 
r i9.(--^S h.9 +S h.9 Ch .9-+-S h.qr.C h - 9 o h.s^. 
Exempla expofita fatis efife videntur praxi illuftrand^; 
oftendunt enim , quomodo miethodus coefficientium indcter- 
minatorum inferviat integrandis noftris formuiis exponentia- 
libus, poltquam fummatoriarum formam per aham metho«» 
dum in cafibus fingulis demonilravimus . 
JOAM- 
