QUADRATURE of the CONIC SECTIONS, Sec. 2or 



fee* a 



tan 3 a 





fee 2 f a 



4 





2 3 tan* ± 



a 



fee* £ a 





4 3 tan» ^# 



fee 



z « 



rt 



2* tan* \a 



— - tan - a fee 2 - a t 



82 2 



_ „ fec't* _ I {an I a fe.. I „ 



4 3 tan : 



fee 2 4- a 

 8 tan^tf 



8 5 



^rtan la fee* | *, 



fee 



a a 



2 n — 2 



fee 



z a 



2 3fB "" IJ tan 3 — 2 J («-ntan5-^- 



2* — 2 2" — * 



fee 2 



4 



2«— 1 



2 3(«— O tan 3 



a 



2« — 1 



fee* — 



2" 



2 3» £an J — 



2" 



_-JL_tan-^-fec*-^, 



n — 1 2 n — * 2"— * 



o 



I a r 1 a 



— - tan — lee — . 



8 n 2" 2* 



Let the fums of the correfponding fides of thefe equations 

 be now taken, and reje&ing from both the common feries 



fee 2 ~ a 



r- + 



fec 2 -f* 



fee 2 



a 



2 3 tan 3 \a 2 3 tan 3 \a 

 the refult will be 



fee 2 -! 



2« 



- • + 



2« — 1 



2 u«— 1 J tan 5 



a 



fee a . 

 tan 3 a " \ 



3 »» tan ; 



2» 



-H 



fi tan - a fee* -a -f i- tan 5 a fee 4 - 

 18 2 2 8 2 4 4 



L 8» 8 8 8" 2" 2" . 



Vot. VI.— P. II. Oo and 



