SI15 DiE M or V 



Vel ob cof. (i^-|-'V])=icor.<^cof vi-fip.^fin.^i toamus 

 C-DmE,vt habeamus : 



^/'rin -i/,'j-/7'-v,*rin y^- "^^t;Yir;B.f//n.vi(Acof.>i 4BcoJ.^4-Dco/.g'co/.yi4. i:r; Vrm-v i 

 ff<, mi.vi TUy] UU.L, _ Aco/.^-l-Beo/.yi-HD ' 



Ynde fi ponamus breuitatis gratia 



Acof ii-H Bcor<^+Dcor^cor.vi-|-Efin,^ fin.>i zrP et 

 A cof. ^ -f- B cof. >! -f- D zz Q^ 

 deducimus radicem cxtrahendo : 



dJjirKTi P ± V(PP Q^) 



i6. Curo nulla via pateat huiusmodi aeqrationcs 

 Tcfoluendi , contempleinur cafus , quibus refolutio eft 

 in poteftate , qui funt, quando Y£l Arro, vel B — o-, 

 tametfi enim etiam his cafibus aequatio poflrema pa- 

 rum tradabilis yidetur , tamen ex formuHs principali- 

 bus lolutio facile dcducitur. Si enim pouamus ^zzq^ 

 prior integratio praebet: 



tum vero ex §. 12. ob Brro impetramus 



xddy—ydix — o hiticque xdy—ydxrziQo^^.dt 

 ponamus ergo {xdy—ydx^-zz.AfgYadt'^ fietque 

 Ya[dx^ d/f- 2 ix dy ^y dxf i^ -+- „^) =z 1; V ^' (^ 4- f) 

 et fniflis lubflituticnibus fupra indicatis : 

 fid^^i^in.-f-j-dyi^Cin.^'- 2 ^(^A^-yiGn.^fin.-vicof (^-f-'vi)) 



zz:/^^ fin.^i i— T^y, h Cj 



feu 



d ^' fui. ^' ( I -. £ii:i::2L/i!L[L|-:!l=i/iILiL' ) ^ d yi* ClU. ^' 



:iz 2 f/^^fl^v^fin. (^fm.Tjcof. (4"-^- ^l) 



cuius 



