112 S O L V T I O 



IV. Iniiejligatio dijlantiae punCtorum F et G. 

 15. Ex formulis fiiprji inuentis habemus hic: 



A O A R zcc-4-ih — aa c — h-+-a 3(0 — 6); — aa-f-&& 



Gp p p 2_A. 3_A ; A fa -f- ft — a c) 



quorum quadratorum fumma reducitur ad hanc 

 formam : 



^ 'a-\-a'b-\'^aabh~Sabcc') 

 FG*rr ^ ^^_^\ ^ t\ -b*-\-ab^-\-^aacc-Sabbc\ 

 l^ -c*-\-a c-{-j^bbcc~5aabc^ 

 -^ ac^ 

 -^b^c 

 •^bc'. 

 Cum nunc fit : 



a*-^b*-\-c*—p*—^ppq-\-^qq-\-^pr 

 aabb-i-aacc-+-bbcc—.qq-zpr 

 a'b-\-ab^-\-a^c-\-ac -)rb c-\-bc'~ppq-2qq-pr 

 abcc -h' abbc-{-aabczzpr 



expreflio inuenta hanc induit formam r 



YG-^/f.i-p^-^SPPq-iSpr^^z^^ii^^JLr 



V. Imiejfigatio difiantiae pun&orum F et H. 

 16. Pro hoc cafu habemus : 



r\-c- C ILT ' :^ c(a(7 4- hh — tc ) ;c *-(g a-<. hb )cc- {aa-hl)* 



Vi^ ~ ^ " ~ /c 8 A — 7^c~l. 



Qiiod- 



