Mulfiplicetur nnnc utrinque per 2 cof. i (J) et per notiffimas 

 redu&iones reperietur: 



flcof.i ^cor.p- 1-+ -i cof. 2$+^i^cof^(t) + ^p^ 2 Jcof.5(J)-+ete. 

 -hCof.^jCpH-icof^ai-aj^-^ili^l^cof^ii-^)^) 



^ ;: / ;, I " / 7 2 : cof.(2i-6)cp-4-etc. 



J. 27. Multiplicetur nunc utrinque per D (J) et in- 

 tegretur 9 prodibitque 



2^$cof.t$cof.$ z ==(p+i.rin.2(J) + iii^rin.4(t)-hetc. 



H-ifin.^$ + ^Jm.(2i_^(f)+l^^fin.(2i- 4 )$+etc. 



quae formula iam evanefcit pofito (J) = c. Statuatur ergo 

 (f) === 7t, atque proveniet **fd (J) cof. i $ cof. (J) z = 7iv quocirca 

 valor in problemate quaefitus erit • 



= /D(J)cof. t (J) cof. $ z = — . 



$. 28. Quodfi iam ponamus in ferie quam quaerimus 



A + B cof. (f) -+- C cof. 2 <J> -+- D cof. 3 -+- E cof. 4 (J) ■+■ etc. 



cocfficientcm ipfius cof. i (J) effe I, ita ut flt 



I — : |/<|) d $ eof. i (]) , exittente 



(& = ( )+(i)cof(J)H-(2)cof.^ 2 -+(3)cof.$ 3 -+-(4)cof.$ 4 H-etc. 



evidens eft ex iingulis terminis lriitialibus nibil prcdire , 

 donec perveniatur ad X = i '. , qtrippe quo cafu modo vi- 



diraus effe f d $ cof. i (J) cof. (J) 1 = — , a quo valore pendent 



cafus fequentes per binarium afcendentes, X=i-f-2- A = i 

 ■H-f^ A=:i+c; etc. Scilicet vi Lemmatis erit: 



pcf> 



