计算:|1\2005-1\2004|+|1\2004-1\2003|-|1\2005-1\2003|

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 17:11:27
计算:|1\2005-1\2004|+|1\2004-1\2003|-|1\2005-1\2003|

计算:|1\2005-1\2004|+|1\2004-1\2003|-|1\2005-1\2003|
计算:|1\2005-1\2004|+|1\2004-1\2003|-|1\2005-1\2003|

计算:|1\2005-1\2004|+|1\2004-1\2003|-|1\2005-1\2003|
l1/2005-1/2004l+l1/2004-1/2003l-l1/2005-1/2003l
=(1/2004-1/2005)+(1/2003-1/2004)-(1/2003-1/2005)
=1/2004-1/2005+1/2003-1/2004-1/2003+1/2005
=0