55 
2. Omissis in præsenti , quæ ex (5) et (5 ] tlethican- 
tur, formulis specialibus sufûcit in mentem revocare, formiiia- 
runi sequentium primam ex (6) tum secundam ex (6 ) atcpie ex 
iis tertiam detluci rite licere modo, quem in ”Handbuch d. 
Matbem. Analysis” pag. 270 — 272 eleganter adhibuit Cel. 
S c h 1 ö m i 1 c h : , 
/II 1 \ 
îfCotJf~l 1 — ; -i- &c. ] , 
' ,2 * (' O ^ N 2 ..2 * ( Q _ N 2 ..2 ' 
[27iY-ti^ [3nY-ii 
(7) 
Tann«“ 2 u 
(i)-" 
h 
StT, 2 
-I 1- ct-c. 
Î« Cosecftzz: 1 
dc. ) , 
atque ex iis (ibidem*^) tandem 
f n u 
— Cot - 
2 2 
—Cot - “I — - — -u ^ — dc. [ 2, T > M > — 271 J , 
2! 4! 6! 
1 tf 
. .. 53 03 
(8).../ - Tff — zzz 2^'- 1 ) — î-^t-f(2’-l) — 2®- 1)— ^M^+dc. r7r>?f> — ti] 
\ 2 ” 2 ' 2\ ^ ^4! ^ GI 
% 
Cosec-z=;l+( *C+(1 — - ) — m^+ dc. | 2n>u> — 27i]. 
2 ^ 2/2! ^ 2V4! 2V01 
Tres quoque valere novissimas, etiamsi u imaginaria sit 
et quidem modulo iisdem reservatis subjecto, quibus lieic valor 
*) Immutasse nos paullulum el quidem, ul nobis videtur, rei mugis conveiiicnter 
ipsum babitum sex harum aequationum, ingenue confitemur. — 
