lV.Sit«=:4- - - - - 1+ 4-+ ^+ 4-+ I 



n<-6 ' - - - 1+ 6+15 + 20+15 + 5 



crgo (erie& i + 24. + 90 + 80+ 15 + — 3 10 

 at produdum noffrum eric — '^j^^j';^. 



V.Sit»=5 - - - -1+5+ 10+ 10+ 5+ s 



n'-7 - - - -1+7+^1+35+35+21 + 7 



ergo feries 1+35+210+350+175+21+0-79^ 

 at produflura noftrum fiet — '"; "; ' l[ ^; '- -:: 793. 

 etc. etc. 



Explicatio 

 pro cafibus, quibus alter exponens «' cll ^ 

 numcrus fradlus. 



$. 13. Sufficiat hic fumfiflTe ;;'zi — g, vnde ferie$ 

 vnciarum 



I 4- a' -f- (3' -h y' 4- 5' -H etc. erlt 



1. 1 I. j. j 



His igitur terminis fingulatim in feriem 



i-+aH-|3+-YH-5-i- etc. 

 dutflis, orietur ifta feries : 



cuius ergo fumma aequabitur huic produdto: 

 I ' ~T~* "y~ ' ' ' '~n 



L 3 iluA 



