2-]% Opuscula. 
= — — y.- ergo fumma cft 
^ .( _ J- S c . ^ - i- C c . ^ ) ^"°'"°<'f invenienda fit 
\ ,^ ^i-jrrf^p.clSc.tfH-iCc.ip 
^rSy^^.(^Sc.^+-Cc.<f'^ ^^^^-^^^ num. Xm. Sup- 
ponamus eam elTejy . ( ^ S c . H-./^' C c . ^ . Capiatur dilFerentia 
Vc-^-Sc.^+^Cc.^)^^"'?''"^^^ ^"'^ acquationcs 
— — ~ "f > ~ — quibus ^ = — -^r, 
Igitur Sy d(p ,(^Sc ,cp-h — Cc ,<p = ry ,{— — $ c , (p~Cc,Cp , 
Quapropter formulx propofitx integraiis ita fe habet 
2 I 
ry cp,( — S c , ^ ~~ ' — Cc.^ 
H- r^y .(--^Sc.fp — Cc.®. 
Exempium fecundum. Pofita/^rr 2j ^=1 , 2 propcnatuf 
jntegranda formula y(p^d^',{iic .9 .Cc.(^-hSc,q).Cc ,cp , 
Ejas fummacoriam fuppone efie 
y ^^.{ASccp -\-A Sc,(p . C c.(|3H-^''S c.cp .C c.o -i-^"'C c . 
-2 5)rp</>:{3-(^Sc.(p%^bc.9 .Cc.qD + ^''Sc.(p.Cc.(i5 + A'' i^c,(p\ 
Differentietur omiffis terminis, qui ex contrarietate {jgnorum 
—3 , 2 
z A S c , (jp 1 A S c . (p ,C c ,<i) 
[ 2 ' 
4-3^ Sc. 9 ,Cc.cp 
— A S c ,cp — 2 A'' '6 c.(p , C c ,(p 
4- 2 S c . cp . l> C .(p -|-2^"'Cc.cp \ 
'{-iA'Sc,cp,Cc.(p+ A''Cc,cp ) 
— 3 " S c . & . o c , .r> , ) 
Comparetur cum propofita , & quatuor a:quationes oricntur 
i.^ 2 A~A ~G, 2.^ 3 A-^2 A ~2 A-r, g.^ 2 A'-i- 1 A' - A '~r, 
^.^ A -\- 1 A'" ~ 0 . Qijarta duda in 3 addatur tertix dut\x 
in 2 , & orietur 5.* 4 ^4' -f- 7 = 2 r. Quiiita duda in 2 ad- 
datur fecundx dudae in 7 , & liet t,^ 1 1 A -^- 1 1 A' — \ i r , 
Huic 
diduntur^-il^. 
