codcmquc modoe rpcritur 



Î225 



ndu 



•^ e.nco ■> [C©.n (o>'— (g .nuVj 



aff . 7101 ■ — n3u 



2 



SIYC 



©. nui (© .nw)' 



imde vicissira conc'.uditur fore 



r 3(0 1 S . nu 



"^ (ffTnu)^ n ' ff.nû) 



» 9co 1 g. no 



-^ ijS . nu)^ n ' © .nu 



§. 11. Ex formulis §. 5''. porro facile derivantur seqnentes: 



iinde dcducuntur sequentes: 

 2 @ . « >; S . è rz: 



2 d . a X @. 6 zz: 



2 (E. « X £ . iziz 



sive réstitutis loco potestatibus ipsius e Sinibus et Cosinibus hyper- 



bolicis : 



2 . © . a . e . 6 — © . (a -h 6) 4- (S (a — S) 

 2 . e . a , (S. i =r @ . (« H- i) — <S (« — 1>) 

 2 e . fl . £ . 6 — € . (a + 6) -h (T . (a — è) 

 2 ©.a.@.6z=:(2:.(a-{-i) — €.(a — è). 



§. 12. Hinc porro deducuntur sequentes expressiones : 



(S . (a -f- 6) =z © . a . e . 6 -f- e . a . e . 6 , 

 (S.(n — 6) — @.a.e.6 — S.a.<S.6, 



20 



SuppL aux Mémoires de tAcad. ^ 



