VE SERIEB. QJIBFSD. CONSimRAT 73 



§. 23. At pro iisdem his coefficientibr.s alia lex pro- 

 greifionis poteft exhiberi , cuiiis ope eos inulto expedi- 

 tius reperire licebit. Cum enim fit j rz i - ~|— x^ 

 erit tang. A. tt .c; — -—^ et tt .c; zz A tang. ^ ; pona- 

 tur 7r .2 z=: M , erit u zzz A tang. ~ et difTerentiando 



d u zzz -~-s.-;:fB^u ^el uudu-^ ^s s dw^z s t^u-\-> 

 ^ u d s \ cui acquationi (atisfacit valor hic sznku*^ 

 B f^* -i- C &* -i- D i<* -h E ^'° H- etc. quo lubllituto 

 fiet 



U U — UU 



/^ss:^:. ^A*«*-f-'8ABz<*H-.8AC7/-i-8AD«'°-f8AFw" 



^^B' tt ^-4-8 BC«''-f miu* 



-\-4r^- U 



a j:=:2Az^*-i-2Btt*-i-2 C»'-K D/^-f-z £/^'^^2 ?«'• 



^^'zn 4A2/*-f- 8Bz^*+i2G.M-i<5Dz.^H-2oE«'°4-24F«'' 



"vnde fequentes coniequuntnr determinationes : 



Azzij 



B zz:^* 



p — 4AB 



D zn i^X-hill 



( I 



F Zi: 4 AF-4-'BD-4-2C* - 



*" 13 



G 4A^-t- BE-4-4CD 



jj __ 4 AG-t- .B -f-XE -t-2D* 



etc. 



§. 24. Ipfie autem huius^iodi ferierum fiimroae, quo- 

 vsque- quidem eas fupputaui , fequentes funt : 



i^-U-l-|.4--;*-4-^-|-etc. = 777- . 5 TT* 

 1 -4- U-i- 14-1-^4-1. 4- etc.zz—f^r:— . 'tt* 

 I -^ U -f- ^5 -h^6 4- .'. + etc. =: pT^^TT-r . i TT^ 

 I 4-^4-1* -l-i.-M.-i-etc. — 77;^ . J,7r' 



T^w. XII. K 1-4- 



