("3) 



cro rfidlo o a dcfcrilxifnr circulus, radium ofculi fccans iil tf, 

 vt Cc 0K=^-£:^, eritque 



up* — ou' — p^ — ""'" . — zz cof. d*. 



■« ■» (1 — a a)" 



Qiiodfi iam in valore ipfius zz loco cof. aaCj) fcribamus Ta» 

 iorcm cof. a Cp' — fin. a Cj)', fiet 



c c = _li — (fin. a d)' -I- a a cof. a Cl)*); 

 quia autcm tang. ^ — a tang. a 0, erit 



COf. 0* = " "^ "-^' " "5^^ :».- 



Jm. o <p* -(- o a co/. a tp* 



quibus Vflloribus fubftitutis fiet 



gccof. 0'— ""'^"'-^•" ^-S 



1 1 — a o j* ' 



Cmilique modo 



zzfm.6' = tL[!:L2^. vndc fit 



(I — a a )* ' 



up* — l^Sl^i^ idcoque ^^ —«;/'"•'»» • 



Tnde patet fore angulum u o p — a.(p. Quare cum flt 



sp—z fin. z= ^ "'■ •' ^ , 

 crit tota diftantia, feu reda 



iU- (p — up- ct,n.rr<t> ^ 



§. 6i. Cum igirur fit radius ofculi j / = r fin. aCfJ, 

 euidens cW rcdas j f/ ct j/> ad cum vbique confiantcm tcnerc 

 rationcm: erit enim /« — —21- et sp~ I , ita vt fit 



I -f- a ^ 1 — a a 



jM:i/zz: I : I -i-a et.fp://— i:i — aa ct Jtt:Jp^i — a:r. 

 Porro vcro erit s'u~ "'^ ct //»— "gr jjj^g^. autem lola 



i-f- a ■• I — a a 



conditio, quod radius ofculi s/ z circulo in « ita fccatur, vt 

 l^'oua Aita Acad. Imp. St,. T. l. P iiiter* 



