SVMMATIO 



PROGRESSIONVM 



coLCp^^+coI. aCp^-t-cof.aCji^-i- +coCn<p\ 



Au c torc 

 L. E r L E R 0. 



Pofito cof 4-^-1 Cn. (!)=;> ct cof.(I>-y-x fin ^-f 

 notum e(l fore 



p^-\-q'* - P^ — Q^ 



coU'<X>zz- — - <t fin.iiq>— ~~ 



a 2 K— j 



tum vero eiiam efle pqzzi, His pofitis euidens cft, 

 fummiitionem harum lerierum fempcr rcduci poflc 

 ad has duas feries vcl progrcflioncs geometricas 



§ a. Quod fi iam hae duac progreflTiones in- 

 ticcm addantur, \t prodcat ifla 



r+r+p'"+ +r - , -.a - 



eius fumrra erit . _ ,,^o« 

 +«■+ 9'"+ 9'"+ + «"• +VW"-*- ^ 



$*+?'*+?'•+ +^'"'= 



»-tf* 





