[ 28 3 ] 
quo in cafu feroiffis tantum ultimi termini fumenda 
eft j cum enim feries h*C colligatur ex numero pari 
terminorum homologorum, quae tamen, ubi A eft 
numerus par, conftare debet ex terminorum numero 
impari, ideo duplum exhibet termin um ulti mum. 
Simili modo cum fit 2 x fin. A =s m x v/ — 1, 
cm 
2*xfin. A> = vCTTx < 
X ~ I X “~2 7,-3 3 1 
—**—*— 1 m +> 
&c. 
+ ztf - A ‘/+Ax 1 / 1 
■ " ^ 
_ X I X 2 ; , . 
1 + Ax x— ■ -tf2 x •'/+, 
* 2 3 — 
L &c. 
Terminis inferioribus hujus feriei praefiguntur alter- 
natim figna -j ubi A eft numerus par, et figna 
J [- ubi A eft numerus impar, adeoque in priori 
cafu eft 
. /*■+«*■ . l K ~ v -\-m K ~' 1 , 
— A X 1 t-A 
2 x ~ l X iin. A"b — V — il x in 
x— 1 
2 2 
x— 1 x*— 2 l K 6 + m K ~ 6 
x x — 
2 2 
et in cafu pofteriori 
Ax x x — 
2 3 2 
&C. 
v iin. Ai = — il x in - — — — AX 
x — i / >, “ 4 — in 
*— * — 2 
■A x 
2 2 
x— 1 x — 2 l K ~ 6 — m K ~ 6 
2 3 2 
Adeoque ft A ftt numerus par, erit 
&c. 
jon7A> — 4-, in + cof. aA + A cof. A — 2 x A + A 
2r 
cof. A — 4XAifAX 4“ * C0 ^ K "" ^ 
x — I 
X A + , &c. 
3 
O 0 2 
Signa 
