=== 104. i 



alios faQores non haberet , practer c -h b et c — b, ftatiii 

 debciet g -f- /i rr 3 c -h 6 . et g — h~c~ h, vel g ^ h =1 

 c -r et g — /i :iz 3 (c — /)). Verum ex ill.i pofilione fe- 

 quert tur g~ z c ^ b et /i — c-^-i6; ex })orteiioie vero 

 g~:c — 6 ct /i::=:cb — c. Hae aiitem binac dcteimi- 

 naliones inter fe conveniunt; n.'ra quia in foinuilis piinci- 

 palibus lantum <juarlrala hh et cc occurrunt, ptrindc cft, 

 five littcrae b et c pulilive fi\e negaiive accipiantur. 



f. 7. Qfiodfi vero loco <i^— z c -\-b hunc valoiem 

 fubftituam ',s . in aequationc g g 1= 2 « a -I- 2 c c — hh ^no- 

 dit 2 a a ~ : /) b +- 2 c c +- +6c, five n a ~ (b -t- c)-, ideo(jue 

 airb*-c. IIoc cr^o cafu in triangulo pnpofiio fumma duo- 

 lum latrrum acqualis Ibict tcrtio ialcrc, id' ofjuc tria pun- 

 fla A, B, C in rcclam cadcrcnt. ncque crgo amjilius foret 

 tiiangulum, ficquc ilta folul.io pcnilus cil rciicicnda. 



5. 8. Qnoniam hacc folulio indc cft nala , quod 

 portiimus formulam cc ~hh alios fafloics non aclmiltcrc, 

 practer c -- 6 ct c — /), neccirc cft vt illa formuhi inllqjcr 

 alios involvat faflores. Ponamus igitur clle cc- hb~ pqrs^ 

 licriquc dcbcbit ^^— li h — 'i p q r s , undc flatuatur g • h 

 — 3 p c7 el jg; - /i - /■ j, unde fit ^ — ^^ ■',; " ct h - ie.',; ; 

 cx formula -vero cc — hh~qprs fumamus c >^ b zz pr 

 ct c— b ~ q s. IIi<; aulcm modo tantum (liircrcnliat; bi- 

 narum formularum fatislecimus g^s,-hh ct lc 6 6, uncle 

 infupcr aliac fcoifim lon t falisfacicndum . cod' m aul( m \o- 

 dit, fi infuper fumma" f.iti.sfi.it. Cum i^ilur fit fi^g-* li h ~ 

 /^aa • 6 6- cc, fubflilullo \.iionim ju^cnlcrum f.icillime 

 c/Ticitur; ciit cnim 



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