1/2+1/4+1/8+1/16+1/32+1/64 简便运算 写出具体过程
人气:291 ℃ 时间:2020-01-27 21:40:57
解答
1/2+1/4+1/8+1/16+1/32+1/64=1/2+1/4+1/8+1/16+1/32+1/64+1/64-1/64=1/2+1/4+1/8+1/16+1/32+1/32-1/64=1/2+1/4+1/8+1/16+1/16-1/64=1/2+1/4+1/8+1/8-1/64=1/2+1/4+1/4-1/64=1/2+1/2-1/64=1-1/64=63/64
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