prcfTimus, nntari cnniicnit fieri 



Cof. OjL 4- 4- d)) — — cQi. I co/. m cof. (k +i + <J»-t-cof.n fin. l\ + i -4- (J) 

 /:r, ^. J flJ-'^^ — — co/./co/.TO/m. ( X+3 + :p; — cof. nco/.(X + «+<J)) 



lin. (fx-f-f-h^j; _ jonj^r^ 1 



r.^ /., I fl-L^^^ — — cof. ?c o/. n/tft. l X-(-g+:i) -f-co/. 'nco/fX-t-^4-:I>) 



Ac fimili mndo aneuli (j. -h <$ -f- ^ et u-^^P + ^ ad an- 

 gulum X ^- -H ^ reuocari pofrunc. Dcinde ctiam pro 

 (equentibiis redudionibus hacc forma impriniis e(l notanda: 

 fin. (ix -f B) cof. [y + C) — fui. {v -i B) cof. (|jl + C), 



quae ob 



f n. M cof. N rr l fin. (M -f N) 4- ^ fin. (M - N), 

 reducitiir ad 



fin.(|x -v)cor(B-C); 

 liocque modo rcdudiuncm pro aliis formulis indituendo, 

 rcpcriemus : 



fin (ix 4- B) cof (v^ -4- C) - fin. (v -f- B) cofi (jx 4- C) 

 := fin. ([Ji - v) cor. (B - C) , 



fin. (|J. 4-B) fin. (v/ H- C) - fin. (v' 4- B) fin. (|jl 4- C) 



— -fin. (;x- V) (in. (B - C) , 

 cor.r(JL4-B}co( (^4-C) -cof (v^-HB) cof (|a.4-C) 



— _(in. (m.- v)fin (B-C), 



vbi fin ([JL — v) pcr f>rmulas vfurpatas datur : eft enim s 

 fin. (u. - v) — r-^-. 



Problema V. 



5. II. Si glohiis ex viaieria ^-niformi conffet, vel 

 faltm ha Juerit comparaius^ vt omnia momema ineriiae fint 



inter 



