DE QUATRE FONCTIONS. 



21 



f 1)" + '[2M-3, <] J2M-5, *] (1 



(2M-3). 2 



( 1)" + 3 [*u+-T,3] [2+7,6l 

 + " 



l,3"J l-i)" 



" 



5, 5] 





, 4] (1)" * [2lt+7, 5] [2lM-7, o] 



( l)*[3u+l,l] ( 1)" + ' [3iH-5, 1] [8iH-S,3] _ (-1)" * *[2lt+S, 2] [2u+S, 5] ( 1)* ^ 3 [2+7, 3] [3iM-7, 4] 



(I)" 



* + S [2+8,2][2iM-S,2] ( 1)" + 3 (2n+7,3] [2+7,3] 



u 1,J> 1] [3p+3n 







sin. (24-!) 



,l] (-1)" + 3 [2lt+7, 3] [2lt+7,3] 



4p + 4 " 



(-l)" t5 [atH-7,5][2u+7,l] 



( l)" + 3 [2u-t-7,3][2+7,0] 



i). 



II serait facile d'obtenir la valeur de cette suite correspondante a x | r. 

 3 A la place de (e'). 



sin ., 2(1+7) 



COS. X 2 



