作业帮化简：|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009|
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/29 15:48:02
x){3{fhic] 2k 5,"H&H"v6TpA{m
A`#a!t!!<4_\gu
CP]k9X] =5
化简：|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009|
化简：|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009|
化简：|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009|
原式=1-1/2+1/2-1/3+……+1/2009-1/2010
=1-1/2010
=2009/2010
|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009|
1-1/2+1/2-1/3+1/3-1/4+...+1/2009-1/2010
=1-1/2010=2009/2010
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