! ' 211 ■ 



tind;' differe-tiali rihilo aoquato prodit 



(CD BK)( • B.CD- BE]-2E[AC-BB])=o; 

 Ex primo fa&ore conclnditur fore 



I. B — ( — — | (w -+- 2 ) £1 C, 

 ex fecundo autem faflore deducitur 



B=L*™-*-'yc cl ° — * AC), 



2 ii — r * 4 £< ^ ' 



ita ut fit 



II. B = |ac[3(m-+-2)-(-i/9w 2 -+-4(m-t-i)^ 

 lli. B ~Joc[3(ra+ 2)-/pm 2 -r4(m-i-ii). 



§. $*. Piimus valor ipfins B, ex faftore CD- BE 

 dedutVis, excluditur, quoniam folutio inde nata non eft pro 

 li lea fecu di Ordinis, fed pro lr ea recra, et quidem pro pe- 

 ximetro trianguii A B C. Cum enim fit EE ~ CF; C D ™* !t 



-BE et BB -AC ~|m m a a c c } ex §. ^. fequitur fore 



Y — c - {m *-'+ " ]cr , 



ita ut binae applicatae abfciffae OXrx refpondentes iint: 



c i b — x ) 



XY — c— cy - 



l 771 , I , ..' 



•V V x, cj: c i n — x) 



Eft vero in figura quinta 



V V B ' . ) C ci b — x) 



XY = 



a y . oc c « — * i 



U A 



ideoque pun&a Y et Y funt in perimctro tiiarguli A B C. 



§. **. Q;iod binos reliquos vaWcs ipfius B attinet, 

 prior eiit pro Hyperbola, cuius una pars HDK perpunfla 



Dd 2 Aet 



