j 3 f CONSIDERATIO 



£kxxzz-pxx-pzz-2xzV(p+fk)(p+gb) -Vfh-O fiue 



— sV(p-*-/ft)fo-4-gft)-f-VN/-«-gzz)(fc-+-fcga) 



*— — "" p~ gkzz 



Hypothefis. 



Hacc fcribendi formula Tlx [a~] denotet fedtionis 

 conicac , cuius femiparameter zz. i , et femiaxis trans- 

 verfus ~ a> arcum a vertice fumtum , cui in axe trans- 

 verfo conueniat abfciffa ~x. 



Corollarium. 



Si a fit quantitas pofitiua , hoc modo defignatur arcus 

 ellipfis; fin negatiua, arcus hyperbolae. Si modo # fue- 

 rit quantitas pofitiua et minor quam la. 



Integrationes formulae fdzy^^ in 12 

 cafus diftributae. 



Cafus I. Jdzw {^ g ^ Z : 

 Integrale eft immediatc : 



c (fb-gb) fk k)V fk -1 



vel etiam per Theor. I. 



^V^fc+^ 11 fk [1 Vk )L fk J 

 Cafus II. /^*v£^| , exiftente /&>££ 

 Integrale eft immediate : 



C ftV/& J*-*^ *)L/*-#U 



vel 



