unde qiio haec folutio cum priore conveniat, eflfe oportet 



1' -t- I s-t-m^ ^f. -u — c y — m'' c 



z^ CL — r- — • 



Efl: autem per naturam ellipreos 



CM°- = -^_l^, ideoque 

 ^=:CMfmA:zz^-^^, feu 



fin^ X =z — x_ , et taug' X = ,-— 



I — n^ z- ' '-' I — 





Hinc, ob tang jji = //r tang X, fit tang"- [^ = , _ „^, ^, , et 

 cofec ,x :i= V'^ ^-'^■'^^^^ . 



' /71- ^ 



Quamobrem quum fit (§.2.) i7~cofec/A, et j- = llii^Illiili! , 

 fequitur 'z;z=^, vnde concluditur ^J^llJ^J^^'? atque 

 vj-c __ ^ — m^ c qucmadmodum requiritur. 



•-iji 



Elcva- 



