作业帮2/1+4/1+8/1+16/1+32/1+.+256/1=?
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/29 09:10:53
2/1+4/1+8/1+16/1+32/1+.+256/1=?
255/256 1/2+1/4=3/4 1/2+1/4+1/8 =7/8 1/2+1/4+1/8+1/16=1516观察归律可得结果也不知道你学没学过等比数列要不用等比数列求和公式也可以
再问： 我想要小学用法。。。。
再答： 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+1/256) -1/256 =1/2+1/4+1/8+1/16+1/32+(1/64+1/64)-1/256 =1/2+1/4+1/8+1/16+(1/32+1/32)-1/256 =1/2+1/4+1/8+(1/16+1/16)-1/256 =1/2+1/4+(1/8+1/8)-1/256 =1/2+(1/4+1/4)-1/256 =1/2+1/2-1/256 =1-1/256 =255/256
再问： 我想要小学用法。。。。
再答： 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+1/256) -1/256 =1/2+1/4+1/8+1/16+1/32+(1/64+1/64)-1/256 =1/2+1/4+1/8+1/16+(1/32+1/32)-1/256 =1/2+1/4+1/8+(1/16+1/16)-1/256 =1/2+1/4+(1/8+1/8)-1/256 =1/2+(1/4+1/4)-1/256 =1/2+1/2-1/256 =1-1/256 =255/256
1+1/2+1/4+1/8-1/16+1/32+1/64-1/128+1/256=?简便运算
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
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256=
2/1+4/1+8/1+16/1+32/1+64/1+128/1+256/1=?
1-1/2-1/4-1/8-1/16-1/32-.1/256
计算:1/2+1/4+1/8+1/16+1/32+...+1/256 等于多少,
1/2+1/4+1/8+1/16+1/32+...+1/256简便运算
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（ ）.