化简:|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1/2010|

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/03 04:12:19
化简:|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1/2010|
x){3{f(·- |]\&HzPm<ٱiGӵtBϳtg{_lzdY-Ϧnx6g Ov/跁ئ < 3AViɍ.Fr6 l !aPDi

化简:|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1/2010|
化简:|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1/2010|

化简:|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1/2010|
因为分子相同时,分母越大的数月小所以1/2010<1/2009,1/2009<1/2008,1/2008<1/2007,1/2010<1/2007
=1/2009-1/2010+1/2008-1/2009+1/2007-1/2008+1/2010-1/2007
=0

1/2009-1/2010+1/2008-1/2009+1/2007-1/2008+1/2010-1/2007
=0