13 2 DE SVMMIB 



Eft autcm vna minimnque radix j- — o , quare aequnt ^ 

 per s diuifa exhibebit reliquos arcus omncs, quorum fr- 

 nus eft —O^ qui arcus proinde erunt radices huius ae- 

 quationis o :zi i -.-£-{- 7;—:— - 7-7-^— -^ ctc. Ipji 

 irero arcus quonim finus eft — o funt ^,— ^,-j-2j5, — 2p, 

 3p, — 3/> etc. quorum binonuTi aker altcrius cft negati- 

 uus , id quod qnoque ipla aequatio propter dimenfiones 

 ipfius s tantnm pares indicat. Qiiare diuiforcs iUius ae- 



quationis erunt i — | , i ^-f , ^ — 4' ^ "^i^ ^'■^" ^^^\^^ 

 coniungendis binis horum diuiforum erit i — .t^t "^ TTTTs 



- {Tjr^^iT}-^^^^' — ( I -jp ) ( I -;p)( I -s"pO( i-rfi-f-) 

 etc. 



§. 17. Manifeftum iam eft ex natura aequationum, 

 fore coefficientem ipfius ss feu — aequalem ^-f-;p 

 -i-^-HTrf^-l-etc. Summa vero fad:orum ex binis 

 terminis huius feriei eric =: , ^ ' ;^^ ; fummaque fii(floruni 

 ex ternis —ttZITZTTT^^^- ^-"^^ ^^ ^^^ ^"^^^ i\x^t% 

 §•8- ^ = ±3^ ^^rTTTrr; Y^TXTTT.— .; etc. atque 

 pofita quoque fumm.a terminorum ^2-h -^i -f-7p H- r^ 

 -f- etc. ".::: P , et fumma c]uadratorum corundem teimi- 

 norura — Q_; fumma cuborum =:::R; iiirama biquacra- 

 torum —^\ etc. erit per §. 8. V — a — ^^—\\ Qpi 

 Pa-28=r/,iR=::Q,a-Pg-|-3Y-5^^;S'=Ra-(;^8 

 -f-PY-4^ = ,i,,;T=i:Sa-Rg-4-Qy-P^H-5e- 

 ,,!,,; V=rTa-Se + RY-Q.^-hPe-^<^=^^.S.;is 

 etc. 



§. 18. 



