SpS D E M O T V 



et IB — Z^, ct pro continuatione \kra A inuenienda 

 capiatiir A S' — A S — .v , vt fit x zz S — a et po- 

 natur applicata ST— ^^, critque applicata ia S^ 

 conftituenda 



jntcgrali hoc ita fumto vt euanefcat pofito x — o. 

 Ergo ob X zzS — a crit 



— s s_ 

 S-^r-ST-^f «/^" ^S.ST 



et area 



A F S' T' - a (S T - S' r) - A F S T 

 Tam \ltra B progrediamur , fumtisque B S" n B S 

 — .V — ^ — S , manente S T — ^' , applicata in S^^ 

 crigcnda cx Pr. 8 8 reperitur 



X — X 



Z::zy -\~l-^ fe ^ j dx feu 



S^^ \''' — Sr -'^e '^ fe'' dS. ST 



ct area 



B G S''r'' =: b (S'^T "- S T) - B G S T. 

 Tviinc ad apcrturam A rcucrtamur ct fumto fpatio 

 A S''' -AS^^^xzrizb-a-S, Ht S'' T'' =z y 

 ct applicata in S''^^ crigenda crit 



— JC JC 



zz=:y-l-e~'' /e "j d x feu 



g/// Y/.v -_ s V Y^' 4- 1- ^. Y^ " d. S. S" r'' 



quae 



