作业帮1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/14 17:21:40
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
令m=1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
两边同时乘2,得：
2m=1+1/2+1/4+1/8+...+1/128
两式相减,得：
m=1-1/256=255/256
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
=（1-1/2)+(1/2-1/4)+(1/4-1/8)+...+(1/128-1/256)
=1-1/2+1/2-1/4+1/4-1/8+...+1/128-1/256
=1-1/256
=255/256
两边同时乘2,得：
2m=1+1/2+1/4+1/8+...+1/128
两式相减,得：
m=1-1/256=255/256
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
=（1-1/2)+(1/2-1/4)+(1/4-1/8)+...+(1/128-1/256)
=1-1/2+1/2-1/4+1/4-1/8+...+1/128-1/256
=1-1/256
=255/256
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256
1/2-1/4-1/8-16/1-32/1-64/1-128/1-256/1
1-(1/2)-(1/4)-(1/8)-(1/16)-(1/32)-(1/64)-(1/128)-(1/256)
1-1/2-4/1-1/8-1/16-1/32-1/64-1/128-1/256等于多少?
1-（1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256）等于（ ）.
1+1/2+1/4+1/8-1/16+1/32+1/64-1/128+1/256=?简便运算
1-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256 要过程 急!
1+1/2+1/4+1/8-1/16+1/32+1/64-1/128+1/256
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512
1-2/1-4/1-8/1-16/1-32/1-64/1-128/1-256/1等于多少
1-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256