1/1×1/2+1/2×1/3+1/3×1/4+…+1/29×1/30

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/29 07:13:36
1/1×1/2+1/2×1/3+1/3×1/4+…+1/29×1/30
x)37<

1/1×1/2+1/2×1/3+1/3×1/4+…+1/29×1/30
1/1×1/2+1/2×1/3+1/3×1/4+…+1/29×1/30

1/1×1/2+1/2×1/3+1/3×1/4+…+1/29×1/30
=1+(1-1/2)+(1/2-1/3)+(1/3-1/4)+……+(1/29-1/30)
=1+1-1/30
=59/30
希望对你有所帮助