1-1/2-1/4-1/8-1/16-1/32-.....-1/512-1/1024-1/2048-1/2048+1/2048
因为1/2048+1/2048=1/1024
1/1024+1/1024=1/512
1/512+1/512=1/256
.......
所以原式=1/2048
原式;1-1/2-1/4-1/8-1/16-1/32-…-1/1024
=1-1-1/2+1/2-1/4+1/4-1/8+1/8-1/16+1/16......-1/1024
【中间的约掉】
=1-1-1/1024
=1/1024
希望能帮到你!!!
1/2048
1后面的所有加起来是2047/2048
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poi
、
1/2048
1-1/2=1/2
1/2-1/4=1/4
.......