问题描述: 哪位大佬,帮帮忙, 六年级 1个回答 分类:数学 2020-05-04 问题解答: 我来补答 解法一: 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 解法二: 1/2+1/4+1/8+1/16+1/32+1/64 =(1-1/2)+(1/2-1/4)+(1/4-1/8)+(1/8-1/16)+(1/16-1/32)+(1/32-1/64) =1-1/64 =63/64 展开全文阅读