1/2008减1/2007的绝对值加1/2009减1/2008的绝对值加1/2010减1/2009的绝对值减1/2010

问题描述:

1/2008减1/2007的绝对值加1/2009减1/2008的绝对值加1/2010减1/2009的绝对值减1/2010减1/2007的绝对值
1个回答 分类:数学 2014-11-07

问题解答:

我来补答
1/2008减1/2007的绝对值加1/2009减1/2008的绝对值加1/2010减1/2009的绝对值减1/2010减1/2007的绝对值
=(1/2007-1/2008)+(1/2008-1/2009)+(1/2009-1/2010)-(1/2007-1/2010)
=1/2007-1/2008+1/2008-1/2009+1/2009-1/2010-1/2007+1/2010
=0
 
 
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