IMJGINARIIS CONSTRFENDIS. 185 



[-^/>-V(i/)*-h^)]*— |/-l-^-f-/)y(-;/)'~i-^) , et radicum minor x 



5P(>=PE-EO=:PE-EI? ., v/..' . > r u • 



~ ^PRii^PA-AKmPA-AKi ^^^*^ ^ ' ^^"'^^"^"^^^ ^""'^ °'""^ 

 Y feu PQVR— i/H-^-j&V(i/-4-^). Eft enim 

 Dtum w///-f- DtuiTi Py?/;^ =:-^/).-5p-f-{|/)'-l-^)— |/-H^ 



confcquenter fubtrahendo habebitur mltJ-i-Vfm^—mltf-Rbm^—Q^fbV 

 jnDtoPQyR— ^/H-^-pV(i/H-^) , vt ante. Erit ergo 

 In cafu ;»:— PI=:PK 



x^=^,p'+q+pVilp^-{-q)—?l.?K =r DtumPITK^ 



-px—-ip^ -pV(i^'+^)r=-PL.PK =z-alumPL5-KC =0. 



-^ = ~q r=PQ.PK— -LI.L5-r=-cz:lum LIT9S 



Et in cafu a'~PQ^zrPR erit 



x'-lp'-i-q-pV{ip'-{-q)-?Q. PR cz Dtum PQVR) 



-px~-ip* -hpV(i/-h^)=:R/:.QV =:-^C3hmR\ivkC =0. 



^qz=z -q —?q_ ?K— alum PQOKzr:- alum ?Qwk 3 



§ i(J, Pro conftmenda aequatione quarta x'' -^-px-q—o ^ {\t (Fi^ 6.) Fis.6; 



^Pir=:PE-4-E/7 y.,. . . j 



5'^Q=PE-EQ=:PE-Ei ? , -,. , ,\ '"^'"^ --p-?\. 

 ?i^R=PA-ARrrPA-A^S =-^+^(^^ -^"^) j 

 adeoque fodum — P/k PQ=:P/ PR~i/-(ip*-}-^)— -^ 

 Ergo in cafu .v~P/— Pfe erit 

 x^-ip*-\-q^pV{^p'-^q)—?i.?k — DtumP/Vfe; 

 ■hpx^-^p' -pV(lp*-^q)zz-?L.?k—-nj\um?L^ki =0. 

 — q^ -q — PQP^n-L/.L^zr-alumLi?^ J 



Tom. III. Nov. Comraent. A a Et 



