3/2+5/4+9/8+17/16+33/32+65/64+129/128
=1+1/2+1+1/4+...+1+1/128
=(1+1+...+1)+(1/2+1/4+...+1/128+1/128)-1/128
=7+1-1/128
=7又127/128请讲解下！谢谢了有帮助请采纳哦~~嗯额... 选为满意回答即可~~ 不用追问了~
3/2+5/4+9/8+17/16+33/32+65/64+129/128=?
3/2+5/4+9/8+17/16+33/32+65/64+129/128=?
数学人气：430 ℃时间：2020-04-14 10:16:34
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