和田地区卫计委:(-1/50-1)(1/49)(1/48-1).....(1/4-1)(1/3-1)(1/2-1)
来源:百度文库 编辑:神马品牌网 时间:2024/04/26 08:42:26
∵1/2-1=-1/2,1/3-1=-2/3,.....,1/50-1=-49/50
∴(1/50-1)(¼9-1)(¼8-1).....(¼-1)(1/3-1)(1/2-1)
=(-49/50)(-48/49)(-47/48).....(-3/4)(-2/3)(-1/2)
=-1/50
1/2+1/3+1/4+1/5+。。。。。1/50=???
(-1/50-1)(1/49)(1/48-1).....(1/4-1)(1/3-1)(1/2-1)
1/50,3/100,1/25,( )?
1-1/2+1/3-1/4+1/5-1/6+1/7.............-1/50=?
1/2+1/3+1/4+1/5+.......1/50等于多少
计算:1 /{1+1/[1+1/(1+.....)]}
1/42 1/40 11/42 1/50 ()
1/6 =1/( )+1/( )+1/( )
求助:计算(1+1/2*3+1/3*5+1/4*7+...+1/50*99)/(1/51+1/52+1/53+...+1/100)的结果
求助:请写出(1+1/2*3+1/3*5+1/4*7+...+1/50*99)/(1/51+1/52+1/53+...+1/100)的计算步骤或思路