= (id8)==^- 



C. l v zzz ,• ia. l v m i ; 



y (i -+- / cor. \jy; y {i-h e' coi.xij) 



.... -r , ^,,_cor..-vlv W^i) . . . ._fjnJvI^V-i) 

 y (i-f- r coi. vj^ ; y(i-+- ^ coi. vjy^ 



Vnde fuflTedlis his valoribiis fit per Jiequationem (A) 



C.lu.C.lu'—S.',uS.lt/ — C.lv.C.l'v'—S.lv.S.l'v'^ 

 cx quo omnino concluditur l(u — u')—l(v — '"/), tumquc 

 S. I (« — u') z= S. U-y — '^O ^ fi"e 



S.lu.C.lu' — C.lu.S.lu'z=zS.kv.C.iv'—C.lv.S.kv\ 

 et fuf^edxis valoribus 



(fin. ■ d) cof. I Cp^ — /in. j 0" cof. | CD) ^^ (p'- t) 

 (i ^ f cof. Cp; c.i -^ ^ cof. (}/; 

 _ (fin. I v|^ cof. l^'— fi"- ' Vcof. ; vfy) -^/^^/»_ jN /BN 

 (i-+-f'cof.v;^j (i-t-^'cof vj^O 



Multiplicata autem hac aequatione (B) per illam (C), con- 

 fequimur omnino 



■ /r y (^f ^y v,_^_f caj.cp i-hoc3j.!p'^ — 



-/yr/*— i) r ^"-^ - ) — ( ^""-^^ ) 



et denique ob u — u' z=. v — "/, quia 



C.u=:C.\u^-hS.lu'z^t±^, etc. prodibit 



Ar. C. ( ';-:;r?T^.^ .) ^r. u. ^ .-^.coj.cp^ >> — 

 - Ar. C. ( -"^-"^-^,. ) — Ar. C. (-^^-l^^J. 

 Quia nunc eft p' — a'{e'—^) et /^ = «'^(/^—1), fict 



omnino ^'''- in ^ At fedor hvperbolicus P, 



(e^—if^ {e''~-Ly''' 

 radiis veaoribus r, / et angulo Cp — 0^ comprehenfus, eft vti 



§. prae- 



