S8 DE SERIEBrS QriBVSDAM CONSIDERAT, 



erit s -zz f ^^^^j ^ ^x , vt eiioluenti flicile patebit. At eft 



quej=:^-/(i+V(i-:i')) + /(i-V(i-.v))-/A^ vbi 



conftans^ ita debet effe comparata , vt pofito x—o fiat 



jzzo. Fiat igitur x infinite paruum , erit "V [i—x)zz. 



i-f et/(i-V(i..r))=:/f=z/.r~/2et l[i^i/{i^x)) 



zzzli-j "vnde czizzlz. Ponatur nunc xzniy eritiz:: 2/a 



atque 



i--4-^-^^-^>f.^~^-4-etc. =12/2 



Ex hac autem ferie reliquarum ferierum (umraae ita deter- 



minabuntur \t fit : 



'-4- -^^-'^-f-^^^^4-etc.=:'^2/2-^^- -^ 



»^ «.<■ ' 6.10.5 * 8.1C.12.5 ' 1.3.S j.:»s.2 $v* 



» «. -£-^211! L_ etr — ^^^ 2 / 2 — "'•^^- _ ^ - ^ 



?^^ lO.S^^IO.iX.S "" » ^'■^* ■ 1.3 .5-7 • * 1-3.5.7.» 5.7.« 7.5 



etc. 

 Qiiibus iiimmis fubftitutis proueniet /^f^ / ( i -h «) 

 — ^- J. 2/2 



^ (T^iiftF ( r; a / 2 - ^ - ;f^ ) 



(.-+.fO* V 3.5.7 z * 2 — 3,^ 7 , - 5.7.J " 7.3 ; 



{l-+-tt)* \ 3'5-7'J * ' ^ 3'5'7',i)*I ~ 5'ry2 "" f ,g.J "* S* ♦ / 



€tC. 



f 3r 



