|1/3+(-1/2)|+|1/4+(-1/3)|+|1/5+(-1/4)|+……+|1/2010+(-1/2009)|
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/05 01:44:17
|1/3+(-1/2)|+|1/4+(-1/3)|+|1/5+(-1/4)|+……+|1/2010+(-1/2009)|
|1/3+(-1/2)|+|1/4+(-1/3)|+|1/5+(-1/4)|+……+|1/2010+(-1/2009)|
|1/3+(-1/2)|+|1/4+(-1/3)|+|1/5+(-1/4)|+……+|1/2010+(-1/2009)|
|1/3-1/2|+|1/4-1/3|1/5-1/4|+……+|1/100-1/99|
=1/2-1/3+1/3-1/4+1/4-1/5+.+1/99-1/100
=1/2-1/100
=49/100