^i m-^ENriO SVMMAE CFIVSQFE SERIEI 



34. Conrideremus nunc hac methodo fericm, qua 

 ^rea circuli, cuius diumeter ell i - i^-i — i-f-| — etc. 

 vel ~ -+- 5-^ H-;^H- rf:; etc. cuius terminus generalis eft 

 vel refoluendo in fadiores rizr.—riir,- Ad 



fummam ergo huius feriei quam proxime inueniendilm 

 eft X = ,-~-;^atque fXdx-Cona. -i/^^-et 



da; U*— 3)' "T-C+x— .)» ? dx5 — (4^— i)*^(4:«: — ,)♦ eCC. liX 



his erit feriei ,-^ H- ,-7 h (,;c— V (I^) <umma S~ 



Conft. — i /;^^3 -}- 5 ( T^ir; — 7^— ) — 5 ( (+x-j)* " (TJnrr?) "^" 



Tj(.(+X— j)* (+X— 1)+; 55'.(4X— 3)6 (4X— 1)«;^^ ,j ^(+X— 3)» 



- (4xlo' ) -1' ((T^^^)"^ -(TSZT) '-o) -+- etc. Haec vero feries 

 «tiamfi decem termini addantur non flitis conuergit, 

 quo valor conftantis commode pofllt exhiberi. Con- 

 ftans autem quater fumta exhibet peripheriam circuli 

 exifleiite diametro — i. 



INVE- 



