（1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384）*128,简便计算,

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（1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384）*128,简便计算,
（1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384）*128,简便计算,

（1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384）*128,简便计算,
(1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384)*128
=(1/3)(1+1/2+1/4+1/8+1/16+1/32+1/64+1/128)*128
=(1/3)(1+1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/128-1/128)*128
=(1/3)(1+1/2+1/4+1/8+1/16+1/32+1/64+1/64-1/128)*128
=(1/3)(1+1/2+1/4+1/8+1/16+1/16-1/128)*128
=(1/3)(1+1/2+1/4+1/8+1/8-1/128)*128
=(1/3)(1+1/2+1/4+1/4-1/128)*128
=(1/3)(1+1/2+1/2-1/128)*128
=(1/3)(1+1-1/128)*128
=(1/3)(2-1/128)*128
=(1/3)(255/128)*128
=255/3
或
(1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384)*128
=(1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384+1/384-1/384)*128
=(2/3-1/384)*128
=((256-1)/384)*128
=255/3

原式=(128/384+64/384+32/384+16/384+8/384+4/384+2/384+1/384)
=(128+64+32+16+8+4+2+1)/3
=255/3
=85

1/3-1/6-1/12-1/24 简便计算方法 1/3+1/3+1/6+1/12+1/24+1/48+1/96 计算 2/3+1/6+1/12+1/24+1/48+1/96+1/192 1/3+1/6+1/12+1/24+1/48+1/96简便计算 1/3+1/6+1/12+1/24+1/48+1/96的简便方法. 1/3-1/6-1/12-1/24-1/48-1/96 1-2/3-1/6-1/12-1/24-1/48-……1/768 1-2/3-1/6-1/12-1/24-1/48-...-1/768=? -1/3〔-1/2(-1-x)-1/6〕-1/12=-1/24 2/1+6/1+12/1+24/1+48/1 (5/12+1/6-3/4)×(-24) 1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384=? （1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384）×128 (1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384)*128的简便运算 (1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384)*128 （1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384）*128,简便计算, 1/3+1/6+1/12+1/24+……1/96简便计算 1/3+1/6+1/12+1/24+1/48怎么简便计算?