Tum vcro ex motu progrefriuo habemus 

 dv — 2^ g d t cof. ^, 

 'V d (P :^ iS g d t dn.^ ct 



f „„ >; /1 fin.t cof.9 



tang. i; _ __^— ^_^ , 



Tbi ed P 2 O =: ^ et Z O n= /. Gum ergo fit angulus 



EZO-i8o°-e-Cp, erit AZO = i8o'-A- O-Cji: hincque 

 con a — cof. / cof. s — fin. / fin, s cof. (X _f- 4- (p) 

 cof. p =: cof. wcof.^ — fin. wfin. j- cof. Qx-{~ Q ~\- Cp) / 

 cof. y = cof. « cof. s — Cn.« fin. s cof. (v H- +(!)) ^ 



exiftente 



cof. s — cof. / cof. a 4- cof. m cof. (3 + cof, n coH y , 



Ynde fequitur fore 



H- fin. / cof / cof. (\ _4- d -f- CP) n 



-f- fin. m cof.w co(. (jul _|- $ _|- (p)(. — o.. 



-I- fin. n cof « cof. (v -4- -f- CP) j 



Ponamus scof.i— p et « fin. J" :zr ^ ita vt fit 



eritque 



xznp cof. / — y fin. / cof. (X -i- ^ -I- Cj)) ,, 

 y ^p cof. m—q fin. m cof. ([x -1- -h- Cp), 

 z—pcoln — q fin. « cof. (k 4- 4- C|))y 



ex quibus valoribus fit 



d l — q d t ^m. (\ ~\- ^ -\- (^) ;' 



dm—qdt fin. ((0. -f- 4- Cp) ^ 



dn — qdt fin. (v -H ^ -f- Cp) i 



d\ — p dt-\-qdt cot. / cof (A -4- ^ -1- Ct) ; 



</fji. - />«?f -\- q d t cot. »2 cof.^^a 4- ^ + Cp)-, 



dy—pdi-^qdtcot.ncof.^y^^^^p}; 



P 3 indc- 



