1x2/1+2x3/1+3x4/1+4x5/1+...23x24/1 =一乘二分之一...

分类: 作业答案 • 2022-06-19 00:22:37

问题描述：

答

1x2/1+2x3/1+3x4/1+4x5/1+...23x24/1
=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+……+1/23-1/24
=1-1/24
=23/24