FACTORIBFS ORTIS. 19 



finebitiir fTiciendo az=:^-f-(r-f- i )<^ ; <^=:/-4-(r-Hi ) 

 ^i fietque czz-ly ita vt {^a ctzz:a-+\b \ ^—j-^-ib ^ eritquc 



S ^-, ir J 7) :6\ P<^^^^^ ^et/ioco 2^et 2/ Haec 



auteni aequatio nil aliud efk nifi Theorema (upra inuen- 



tum §. 12. ^aa emm /— ^^^y77r^=ret/^^^_^,,^ 

 — ^ i vnde fiet tt ::=: 2^^J— -^ • />/(-i_^.6y 



f . 46". Similf modo alia; huius generr& theoremata irr- 

 veniri polTunt ^ lit enim g nz h ^ Z?n ^ i 'n — S^— ^ et m y ^ 

 qiiaeraturque caliis ,, quo pioducSum ambarum exprefiio- 

 num fiat=i. Hoc autem obtinebiturf, nt|i±5^'^^^^'» 

 znr ; id quod fiet capiendo ot— ^-i-(i:-i7- i )^j/=3^4- 

 (y-^x)^;^zi:<?. His. fgituE valoribus (iibftitutis orietur 



iequens theorema no» inelegafls Tjz^jTf jv^ 



IX uX[J> X j, *■ 



y-hJ^—n habebitur/^^j^ . /^6pr ^ 

 />2^_ Ijx^^^-^dx 



D 3 §.. 47' 



