问题描述: 数学简算题(1+1/5)(1+1/5^2)(1+1/5^4)...(1+1/5^32), 1个回答 分类:数学 2014-10-22 问题解答: 我来补答 (1+1/5)(1+1/5^2)(1+1/5^4)...(1+1/5^32)=(1-1/5)(1+1/5)(1+1/5^2)(1+1/5^4)(1+1/5^8)……(1+1/5^32)/(1-1/5)=(1-1/5^2)(1+1/5^2)(1+1/5^4)(1+1/5^8)……(1+1/5^32)/(1-1/5)=……=(1-1/5^64)/(1-1/5)=4(1-1/5^64)/5 展开全文阅读