1/2+5/6+11/12+19/20+29/30+……+9899/9900

问题描述:

1/2+5/6+11/12+19/20+29/30+……+9899/9900
1个回答 分类:数学 2014-11-12

问题解答:

我来补答
1/2+5/6+11/12+19/20+29/30+……+9899/9900
=99-(1/2+1/6+1/12+1/20+1/30+……+1/9900)
=99-(1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+……+1/99-1/100)
=99-(1-1/100)
=98.01
 
 
展开全文阅读
剩余:2000