23/01/08 23:59:15.87 lPOVLGAl.net
>>596
∫[0,1]sin(nx)/(1+1)dx<∫[0,1] sin(nx)/(1+x) dx<∫[0,1]sin(nx)/(1+0)dx
(cos0-cosn)/n/2<∫[0,1] sin(nx)/(1+x) dx<(cos0-cosn)/n 左右辺→0 中辺→0
23/01/08 23:59:15.87 lPOVLGAl.net
>>596
∫[0,1]sin(nx)/(1+1)dx<∫[0,1] sin(nx)/(1+x) dx<∫[0,1]sin(nx)/(1+0)dx
(cos0-cosn)/n/2<∫[0,1] sin(nx)/(1+x) dx<(cos0-cosn)/n 左右辺→0 中辺→0