fin. c fin. <^ 



'~;fin. c. cof. |3. fin. (-^ -i- ^-)" 



"vbi tamen , vt in fuperioribiis , fupponitur b—Bizza, 

 iFraeterea quia effc 



:fin.(^+*l=JL) r: fin.?. cof. (^-^) + cof <^fin.(^-^)| , 

 — fm. ^ H- cof. ^. frn. (^^), ^ 



Iiittc 



fin. (^ -4- g^-^) _ ^ _^ ^^^_ ^ P^^^^ ,^_^. 

 fin. < ' * ' 



.adcoqne, ob fin.(^-^) valde parmiin , loco 



adhibcrc lictbit 



I -y- coc. ^. fm. i''-^-^} 



I — cot. 4. fin. (?——); quarc fiet 

 , fin. l (cc ^ a') :=,^,^;p (x - cot. ^. fin. ^^), 

 quae formula valorem fatis propinquum ipfuis ct. -\- a' ex- 

 primit. 



^. II. Pro inueniendo autcm valore anguli •^^— , 

 feqiienti ratiocinio vti licebit: quia ert 



cof, (/— f)=:cof. a. cof. ^-j-fii'!.^. fin.Fcof (^ — a) et 

 cof. (/4- ^*) — cof. a. cof ^ + iin.a. fin. f cof (^^-f a') , 

 fiet 



coj.ff-.j -4-cof. fA4-M- ..gja^ — cc^r. (Z-a) +COf (^ + a'), 



hincque 



vnde 



cof. 



