^4^ DE REDrCTIONE 



Integratio cafus I. 



J'*'^ ' h-*-kzz — -^ gb ■^'^h-i-kzz 



, L T-r/ fe-g6 / V (/+gzz) ,\r-i!L±iil 



T^VC//! — gb) ^^ gh \ V/ "'-'L g/j 1 



(/fe— gfa)TT/fe/- zv/; vr-^^n 



feV/fe •^^gfcl *"'V(^-*-<iZ2.)JU''J' 



Coroll. 2. 



87. Ex hypothefi n°. 3. cafus V. deduci pofle 

 \idctui , vnde fit : 



cxiftente j/ = Vfe^l et .r =: V (/-^5: z ) 



fed haec vltima formula ex cafu VI. confici nequit ; 

 ncque etiam ex hypothefi 0°. 2. 



CoroII. 2' 



88. Confideremus formam VIII, vbi ^ et ^ 

 funt negatiua f/k^^^ , atque n". 3. huc transferendo 

 habebimus 



r^- V f-sz ^ f±^y L=J^ ^L u^y g_±Ayy 



7«~ ^' _/,_{- fezz — g^*-*^ —D-t-kzz g J"J ^ J-i-byy 



gh~fk r,y J—x x 



"T- gO /«■* ' Jk — gl} — kxx 



tmenio yznV i^z^ et x — V(f-gzz) 

 nunc vero eft ex cafu II. 



r .,.-|/g -4-fc» S r-, fk-ghj-^i.f-+-hy y) ^r -fk^-gb -t 



J(*J y f-^hyy — Hik—gh)^^ gb ^ V/ ~*;L gb J 



exificnte V {f-\-hjj)zz^^'^, 



deinde 



