— |x, cos (p-ht) — |x.cos(3/} — t)-+-|*cos(3p-f 1) 



-+- | X. 2 COS /9 | K 2 COS 3/9 — • ~K 2 COS (p 2 t) 



ff~~ K 2 COS (p +2t) + II K 2 COS (3p— 2t) 



-+-§|>t 2 cos(3p-f-2t), 

 sin \J> cos 2 \\j ^z — I sin p — i sin 3p -+ ^h. sin (p — t) 



— |x,sin (jo-+t)-+fx.sin (3p — t) — |x.sin (3p~+t) 

 -+ | x- 2 sin p -+ | x. 2 sin 3 p — ^ x. 2 sin (p — 2 t) 

 -h i >t 2 sin (p + 2 t) — Jf k 2 sin (3 p — 2 1) 

 ■r-|| x 2 sin (3p+ 2t). 



$. 4« Hisce valoribus substitutis, iisque tantummodo ter- 

 minis adhibitis , qui quadratum excentricitatis % continent, quia 

 caeteri in lihro Euleriano. evoluti jam reperiuntur, nanciscimur 



' 3 ^lT~-~ — 6C0S2P4-^ 9 C0S(2P— 2t)-+|C0s(2p+2t) 

 -+- 9 COS t [COS (2/9 t) COS (2p -+ t) ] 



-+- 1 (l -+ 3 cos 2 1) (i -j- 3 cos 2 p), 

 sive per angulos multiplos producta evolvendo, 



Mgi-i =s -t- i-a COS 2/3 + | cos it -t-f COS ( 2 p_ 2t> 



^*= - g sin s p + £ sin ( 8 p- S t> 



3 coj \L» (5 cos* \1/— 3) o . /j.5 ,- 477 / „ A \ 

 i*u. ~ = — | C0S P + T C0S 3 P ~ ^4 C0S (P — 2 



~ | cos (p + 2t) - ^? cos (3p-2t)-|| cos (3p+2t), 



3 sin \L< (5 cos 2 \|/ — l) - . , /5 . 159 • / ,\ 



™; ait 4 — ; = ~ §sinp-+-L sin3p— ^f sm (p— 2t) 



— f|sin(p4-st)-^sin(3p-2t)-||-sin(3p+2t)„ 



