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1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024 要解题思路,

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1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024 要解题思路,
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024 要解题思路,
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024
=1-1/1024
=1023/1024
再问: 还是不懂怎么解的?请指教
再答: 简单的说: 1/2+1/4=3/4=1-1/4 1/2+1/4+1/8=7/8=1-1/8 …… 所以1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024 =1-1/1024 =1023/1024