作业帮-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256怎么简算?
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-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256怎么简算?
-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256怎么简算?
-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256怎么简算?
-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256
=-(255/256)
-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256
=-1/2-1/256-1/4-1/128-1/8-1/64-1/16-1/64
=-(128+1)/256-(32+1)/128-(8+1)/64-(4+1)/64
=-129/256-33/128-9/64-5/64
=-129/256-66/256-14/64
=-195/256-64/256
=-259/256