2009（1-1/2009)(1-1/2008)(1-1/2007).*(1-1/2)

来源：学生作业帮编辑：大师作文网作业帮分类：数学作业时间：2024/11/10 14:07:11

2009*（1-1/2009)*(1-1/2008)*(1-1/2007)*.*(1-1/2)

2009*（1-1/2009)*(1-1/2008)*(1-1/2007)*.*(1-1/2)
=2009*(2008/2009)*(2007/2008)·····*（2/3)*(1/2)
相约得
=1

1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|+.+|1/3-1/2|+| |2009/1-2008/1|+|2008/1-2007/1|+|2007/1-2006/1|+.+|3/1-2/1|+ 数学题哈化简 |1/2010-1/2009|+|1//2009-1/2008|+|1/2008-1/2007|-|1/2 化简：|1/2010-1/2009|+|1/2009-1/2008|+|1/2008-1/2007|-|1/2007-1 2008+2009*2007/2008*2009-1 2008×2009-1分之2008+2009×2007 计算:|1/2008-1/2007|+|1/2009-1/2008|+|1/2010-1/2009|-|1/2010-1 2010*2009-2009*2008+2008*2007-2007*2006.+2*1 计算:|1/2009-1/2008|+|1/2008-1/2007|-|1/2009-1/2007| |1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/20 (1+1/2007+1/2008)*(1/2007+1/2008+1/2009)-(1+1/2007+1/2008+1/ 简算:（2009+1/2007）*1/2008