25 S OpuscolA. 
(+3DjGh.^(^' 
Si nona deducatur a prima divifa per — , refultat 
r 
3 
( ^ 
j r ?r (^zfgDj Sh.q^p .Ch.qCp 
i-\-^DjCh.qcp 
Si deeiraa deducatur a quarta divifa per — , oritur 
( gDjSh.^cp^ 
( * 
a J r^i J (-h^DySh.qCp.Ch.qfp ^ 
12.^ y a(p.Ch.q!'p * ^ ^-4-^ 
^ i^q (-^iDjSh.qCp.Ch.qCp^ — g 
( Zjl 7 DjC h . qCp^ 
Integrentur aequationes nona, decima , undecima , & duode- 
cima, & provenient requifitx lummatori.x . 
Xii. Analyfis fuperioris progreffus nos docet, in omni« 
bus cafibus exceptis fummatoriam difFerentiaiis 
y dcp,^h.qcp . C h.q^p prasditam efTe hac formajy. {A S h.f 
m — I — m — z 2 
A Sh.qCp ^Ch. q cp -\- S h . q Cp . Ch q(p -\- 
A'' bh.q(p ^,Ch .q(9 &c. ufque ad Ch .qcp ) + B /""^ cp , 
in qua unus ex coefficientibus determinari poteftad libitum. 
Cafus autem excepti funt g—ZHtn g-=:zZ^{m — i .q , 
g— 1:{m—/:^ . q , &c. donec deveniamus aut ad 2, aut ad 1. Thco- 
remata , qu2c lemper valent incafibus exceptis funt hujufmodi 
__________ .,____ »73 
y.{j:Sh.qcp + Ch.q(p = r"" 
• I ■■II I I»—.-— ■ 1 /■//—— A " I ■■ ■ I * — 
y,{Zj^Sh.q(p-h Ch. qCp , ( — S h .q JD -\- C h . q (D 
2 
j.(ipSh.^94-Ch.^9 .{ — b h.q (p -i-Ch»q (p r'" : 
atque 
