~Hic iam primo termini, qui continent fin. 2 <p, tolli debent, 

 unde fit g — — ^/; tum vero remanebit haec aequatio, pcft- 

 quam loco fin. (J) 2 fcriptum fuerit i — cof. (J) 2 , divifione per 

 cof. 2 (p fa&a, 



»cof. C^^—^^^fccS: ^^^"(x^-r i;)-cdf; (J^^-l-^cpf. Cp x, " -; ' i J , 

 unde manifefto ht f==r^~i hincque /1 ~ ^Z^ > ticque 

 redu&io generalis ita he habebit: 

 fd Cpcof. 2 $, co f. O x — -^- 'fm. 2 $ cof. (J) x 



+. _A_cof. 2$fin.^cof. $ x ~V>^£&co£ 2$cof.(l) x - 2 . 



Hinc iam, pofito (J) zzz 7r a eiit fecundum Lemma 



/d $ cof. 2 (J) cof. $\— j^^p $ cof. 2 $ cof. $ x ~ 2 . 



J. 15. Tribuamus nune exponenti X fucciffive ordi- 

 ne valores o, r, 2, 3, 4, etc. ac pro X zzz o erit 

 fd (J) cof. 2 $ — | fin. 2 (]) :zzz o, 



Pro cafu X zz: 1 ipfum Lemma praebet =z o; at vero pro 

 cafu X z=z 2 ufus Lemmatis ceffat : tractanda ergo erit ipfa 

 formula fd (J) cof. 2 (f) cof. (J) 2 , quae ob cof. $ 2 zzz J -H | coi. 2 (f> 

 abit in hanc: -h */3 (J) cof. 2$% quae ob cof. 2$ 2 z:|-4-2Cof.4(J>, 

 abit in \fd (J) (1 -4- cof. 4 ({)) — | tx, ficque pro cafu X = 2 erit 

 fd (p cof. 2 (p cof. (J) 2 — J, 



$. i<5". His igitur cafibus fimplicioribus expeditis 

 fequentes ope Lemmatis facile conficiuntur; leperiemus enim: 



1. p(J)cof. 2 (p cof. (J) 3 =z= o. 



2. /3 $ C0f. 2 Cj) C0f. (J) 4 ZZZ 4 ^| . J. 



' 3- /9$cof. 2(J)C0f. (J) 5 z=o. 



Q.2 4. 



