mTEGRAUFM TJER FACTORES. m 

 Scholion. 



58. Hinc-vero etiam plures formulas pro tan- 

 gente anguli \ tt dedueere licet , quarum quae funt 

 fimpliciores , hic exhibebo. 



l«r—»—I, 



jy d y 

 r y *y r y dy 



jl m j 



m—i, \n — 1, 



J 1 , m / 



»» •»/ / * ' -j 1 



2)einde vero ex combinatione harum fbrmularum in- 

 fignes proprietates innotefcent, veluti fi »=4. et mzzzi, 

 erit 



Xr y dy 



1 _ jrr _/TT}~ Jf(i^) 



^x+> Vrp/ J vu+/) 



Tom. VI. Nou. Com. V = / 



