Oposcula . 26^ 
Cwe -^r. Valot ifte pofitus in prima & fexta fufficii 
o 
acquationes idemticas; quare ona ex quatuor A^A\ A\ A'\ 
pro libito eft definienda . Ponamus A = r ^ Bet A ^-^^ — 
A''— - r , A'' ~ ~r, Igitur vera fummatoria 
2 8 
Exemplum quartum . Pofito ^=1,^ = 4, integranda 

{\t y d , , ^ qui calus inter exceptos numeratur = 
que fummatoria fiar y . { AS h .c^ 4-^ Sh.cp . Ch.qs 
4- bh./. C h . 9*+ S h . q? . C h ,9 H- ^^"'Gh»(p'^) 
In hoc cafu valet theorema^ .(Sh. o)— 46^.9. Ch.(|j 
H- 6Sh.q3 .Ch.cp =— ^Sh.^.Ch.c}) -hCh.cp ™r'*9 
Multiplicetur aequatio theorematis per ^-i? , & proveniet 
— ^ .(jBSh.cp— 45Sh.qD. Ch.94-6£Sh,(p .Ch.(|j 
^ — — 3 ^ 
— 4BSh.9.Ch.(p-h-oUh.(]D :=.Br^dfp^ lam vero fum« 
matoriac fuppofitse capiatur difFerentia, in qua pro Br^dcp Lti^ 
batur formula ei xquahs , & proveniet 
( — ; — 4 , 3 2 < % 
^4^Sh.f-F4i^ bh.cp.C h.9 -h4 ^ " S h . qo . C h. 9 
( H-^i^^Sh.^p.Ch. 9+3^ Sh.(p.Ch.(p 
)-\-Abh.<p +2^"Sh.(|).Ch,(|)-|-| ^'"S h . (2) . C h . (p 
( ^S h.cp — 4 B S h.({) C h .(^4- d 5 5 h . (p . C h .(jp 
-f 4 S h. 9 . C h . ^ V 4 A''' C h . 9*.^ . 
+ 2 Sh.(|?.Ch.(?)V A' C h. V ) 
+4^'"sh.(i).crhT^* > 
— 4 -8 S h . (^ . C h . (p + £ C h . (|) . ) 
Hxc comparari debet cum propofita, & fequentes quinquc 
aequationes nafcenturj 1.'' 4 ^ 4- ^-j- £ - r j 2.* ^A-h^A 
4- 
